🏅 Top 10 Sql Queries

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

· Typically, we might need to find the highest, second-highest, third-highest, or Nth highest salary to compare top earners or perform queries related to salary rankings. 1. Creating the Employee Table. We start by creating a sample Employee table that will hold the employee names and their salaries. Query: CREATE TABLE emp (emp_name VARCHAR(50),

6 days ago

10 Oracle SQL Interview Questions (Updated 2025) - DataLemur

· This SQL query begins by joining the . and tables based on customer_id. Then, it calculates the age of customers at the time of purchase and categorizes customers into age groups: '0-30', '30-50', and '> 50'. Finally, the query calculates the average purchase amount for each age group.

4 days ago

100+ SQL Interview Questions and Answers - Intellipaat

· This blog on top SQL interview questions with answers has the most asked interview questions from top MNCs like Google, Microsoft, and Meta to help you crack your next SQL interview. These questions include SQL interview questions for freshers and experienced, as well as SQL query interview questions. ... Write a query to get the top 10% of ...

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6 days ago

SQL Intermediate Practice Questions - LearnSQL.com

· Practice your SQL skills with 10 intermediate-level questions based on real-world scenarios. Includes solutions using GROUP BY, CASE WHEN, subqueries, CTEs, and more. ... If you’ve already mastered SQL basics and feel comfortable writing simple queries, it’s time to level up. Intermediate SQL skills are key to handling real-world reporting, ...

6 days ago

Selecting top results from SQL Count query, including table join ...

· I have this query currently, which selects the top "number of pickups" in descending order. I need to filter only the top 10 rows/highest numbers though. ... Selecting top results from SQL Count query, including table join - Oracle. Ask Question Asked 12 years, 6 months ago. Modified 8 years, 4 months ago. Viewed 4k times 2 . I have this query ...

5 days ago

How to Identify and Eliminate Expensive Queries in SQL Server

· Identifying and optimizing these resource-intensive queries is one of the most impactful performance tuning activities a DBA or developer can perform. This guide walks you through practical techniques to find, analyze, and fix your most expensive SQL Server queries. Section 1: Identifying Expensive Queries 1.1 Using SQL Server's Built-in Tools

6 days ago

Sql Top 10 Rows

t sql - Is there a maximum number of rows you can specify for TOP on ...

· Aside: The OP's linked page shows how to get the TOP 1 row without an explicit ORDER BY in a CTE by using an ordered ROW_NUMBER() and then selecting WHERE RowNum = 1. Using ORDER BY within a CTE does not guarantee the the query will return results in order, only applying ORDER BY to the outermost query is guaranteed to do that.

May 5, 2025

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

· It allows you to skip the first N-1 rows and then return the next row, which represents the Nth highest salary. Query to Find the 6th Highest Salary: SELECT * FROM (SELECT * FROM Employee ORDER BY sal DESC LIMIT 6) AS T ORDER BY T.sal ASC LIMIT 1; Explanation: The inner query selects the top 6 salaries from the Employee table ordered in ...

6 days ago

sql server - How to SELECT TOP(1) with COALESCE to pick the top NOT ...

· thanks, that works, I'll have to chew on it for a while though... it looks like you are iterating from top down and the coalesce() will stick to the first not-null item it finds... but I'm having difficulty wrapping my head around the recursive UNION ALL (never thought SQL server could handle self referencing stuff), and the string concatenation of hierarchy is also tricky...

5 days ago

How to Implement Paging in SQL Server with OFFSET-FETCH

· N is the number of rows to skip; M is the number of rows to return; Simple Paging Example-- Get page 3 of products (10 items per page) SELECT ProductID, ProductName, UnitPrice FROM Products ORDER BY ProductName OFFSET 20 ROWS -- Skip first 20 rows (pages 1-2) FETCH NEXT 10 ROWS ONLY; -- Get 10 rows for page 3

5 days ago

Oracle Sql Limit Clause Best Practices - Restackio

· Top-N Queries: The LIMIT clause is frequently used in conjunction with the ORDER BY statement to retrieve the top N records from a dataset. For instance, if you want to find the top 10 customers based on sales, you can easily achieve this by combining LIMIT with an appropriate ORDER BY clause.

May 5, 2025

Identifying Top Entities by ASH (Part 1/5): Top SQL Statements - LinkedIn

· The following query retrieves the top 10 SQL statements executed in the last 30 minutes, including their execution count and percentage of total activity: Sample output:

5 days ago

PostgreSQL: Documentation: 17: SELECT

· (The SQL standard requires that they be Boolean constants or character strings, but PostgreSQL does not require that.) By default, TRUE and FALSE ... When a locking clause appears at the top level of a SELECT query, the rows that are locked are exactly those that are returned by the query; in the case of a join query, the rows locked are those ...

4 days ago

PostgreSQL: Documentation: 17: 7.6. LIMIT and OFFSET

· If a limit count is given, no more than that many rows will be returned (but possibly fewer, if the query itself yields fewer rows). LIMIT ALL is the same as omitting the LIMIT clause, as is LIMIT with a NULL argument. OFFSET says to skip that many rows before beginning to return rows.

4 days ago

Sql Query Top 10

mysql - Selecting Top 10 Employee Salaries - Stack Overflow

· I have a database for salaries of employees. Here are the Salaries Table fields:. emp_no INT(11) salary INT(11) from_date DATE to_date DATE I'm trying to get the top 10 employee salaries, non-duplicate employees.

5 days ago

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

· The inner query selects the top 6 salaries from the Employee table ordered in descending order. The outer query orders the results in ascending order to retrieve the 6th highest salary, ... Problem: Write a SQL query to find the 2nd largest value in a column in a table. Examples: In the 1st example find the 2nd largest value in column "Income ...

6 days ago

nesting MAX for SELECT - Database Administrators Stack Exchange

· It can be done with a query: SELECT s.* FROM ( SELECT DISTINCT series_id FROM series ) AS ds JOIN series AS s ON s.series_id = ds.series_id AND s.season = ( SELECT si.season FROM series AS si WHERE si.series_id = ds.series_id ORDER BY si.season DESC LIMIT 1 ) AND s.episode = ( SELECT si.episode FROM series AS si WHERE si.series_id = ds.series_id ORDER BY si.season DESC, si.episode DESC LIMIT 1 ) ;

4 days ago

MAX CASE WHEN in SQL - Interview Query

· Write a query to select the top 3 departments with at least ten employees and rank them according to the percentage of their employees making over 100K in salary. To solve this query, the strategy involves grouping employees by department, counting the total number of employees, and calculating the percentage of employees within each department earning over $100K.

5 days ago

MySQL: How to Write a Query That Returns the Top Records ... - i2tutorials

· MySQL: How to Write a Query That Returns the Top Records in a Group Here you can write a query that returns the top n records from a group or category. Over time,I’ve needed this type of query occasionally, and i always end up either iterating through a result set in code or doing an overly complex multi-query union.In retrospect, both methods are highly inefficient and stupid.

4 days ago

Enhance SQL Performance with 5 Key Metrics | MoldStud

· Pay close attention to the query's cost percentage and identify whether joins, scans, or sorts are causing delays. You can leverage dynamic management views (DMVs) to gather execution statistics. For instance, the following query retrieves the top 10 resource-intensive queries based on execution time:

11 hours ago

SQL Intermediate Practice Questions - LearnSQL.com

· But don't stop here. Consistency is key when learning SQL, and the best way to keep improving is by solving more practical problems. If you're looking for structured, hands-on practice with instant feedback, we highly recommend the SQL Practice track on LearnSQL.com. It’s designed to help you strengthen your skills through real query challenges that build on one another – no fluff, just ...

6 days ago

Top Query In Sql

sql - Select top 1 row with aggregate function - Stack Overflow

5 days ago

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

· In a relational database, retrieving the Nth highest salary is essential for analytical tasks like performance analysis, salary comparisons, and reporting. Typically, we might need to find the highest, second-highest, third-highest, or Nth highest salary to compare top earners or perform queries related to salary rankings. 1.

6 days ago

sql server - How to SELECT TOP (1) with COALESCE to pick the top NOT ...

· It is convenient for displaying, but completely inconvenient for SQL processing. If possible, I would recommend going to the standard parent-child storage scheme, and building FQPath in the query if required.

5 days ago

MySQL: How to Write a Query That Returns the Top Records ... - i2tutorials

· Here you can write a query that returns the top n records from a group or category.Over time,I’ve needed this type of query occasionally, and i always end up either iterating through a result set in code or doing an overly complex multi-query union.

4 days ago

query - Strange behavior of TOP 1 clause sql server - Database ...

· I have a SQL Server database and restored it on another server on a different machine. Now I run following same query on both DBs which produces same below result set. select person_id, visit_id,

4 days ago

sql - How to select top five or 'N' rows in Oracle 11g - Stack Overflow

· select distinct ani_digit, ani_business_line from cta_tq_matrix_exp limit 5 I want to select top five rows from my resultset. if I used above query, getting syntax error.

5 days ago

Cross apply (select top 1) much slower than row_number()

· Using AdventureWorks, listed below are queries for For each Product get any 1 row of its associated SalesOrderDetail. Using cross apply it takes 14000ms. The equivalent row_number version takes only

4 days ago

Selecting top results from SQL Count query, including table join ...

· I have this query currently, which selects the top "number of pickups" in descending order. I need to filter only the top 10 rows/highest numbers though. How can I do this? I have tried adding 'W...

5 days ago

Sql Select Top 10

sql - Can you specify 'unlimited' when using "Select TOP (@variable ...

· In SQL Server 2005 or later you can use following syntax to return a a variable number of rows: Declare @Limit Int Set @Limit=5 Select Top(@Limit) * From TableName Is there some magic value, that ...

5 days ago

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

· Finding the Nth highest salary in a database table is a common challenge and interview question for SQL enthusiasts and professionals. This tutorial will guide you step-by-step through multiple methods of solving this problem in SQL, from using ranking functions to subqueries and the LIMIT clause.

6 days ago

MySQL: How to Write a Query That Returns the Top Records ... - i2tutorials

4 days ago

sql server - How to SELECT TOP (1) with COALESCE to pick the top NOT ...

· How to SELECT TOP (1) with COALESCE to pick the top NOT NULL row for each column?

5 days ago

PostgreSQL: Documentation: 17: SELECT

· SELECT SELECT, TABLE, WITH — retrieve rows from a table or view Synopsis [ WITH [ RECURSIVE ] with_query [, …

4 days ago

The Ultimate SQL Cheatsheet for Developers, Analysts, and Architects

· SQL (Structured Query Language) is the backbone of database operations, essential for developers, analysts, and architects. Below is a comprehensive breakdown of SQL commands, functions, and best practices. SQL Basics ↦ SELECT – Retrieve data from a table.

4 days ago

PostgreSQL: Documentation: 17: 7.6. LIMIT and OFFSET

· 7.6. LIMIT and OFFSET # LIMIT and OFFSET allow you to retrieve just a portion of the rows that are generated …

4 days ago

SQL SELECT Statement - Tpoint Tech - Java

· The SELECT statement is the most commonly used command in Structured Query Language. It is used to access the records from one or more database tables and vi...

Apr 16, 2025

Sql Top 100 Query

MySQL: How to Write a Query That Returns the Top Records ... - i2tutorials

4 days ago

t sql - Is there a maximum number of rows you can specify for TOP on ...

· When writing a query with the TOP clause in Microsoft SQL Server 2019, is there a limit to how high a number you can specify before the query fails? For example: SELECT TOP 9999999999999999 FROM table ORDER BY name I ask because I am using Bold BI with my SQL Server, which restricts the use of ORDER BY unless I also specify TOP. I want to set ...

May 5, 2025

Oracle Sql Limit Clause Best Practices - Restackio

· To retrieve the top entries from a dataset when paired with an ORDER BY statement, such as the top 5, 10, or 100 entries. ... When working with SQL queries, particularly in data engineering, the use of the LIMIT clause is essential for optimizing performance and managing resource costs. The LIMIT clause restricts the number of rows returned by ...

May 5, 2025

sql server - How to SELECT TOP(1) with COALESCE to pick the top NOT ...

· @LouisSomers I think that you have chosen a very bad scheme of hierarchy storage. It is convenient for displaying, but completely inconvenient for SQL processing. If possible, I would recommend going to the standard parent-child storage scheme, and building FQPath in the query if required. This will greatly simplify the processing.

5 days ago

query - Strange behavior of TOP 1 clause sql server - Database ...

· Now I run following same query on both DBs which produces same below result set. select person_id, visit_id, verification_code, mobileNo, created_date from person order by verification_code, created_date DESC But when I add TOP 1 clause to the above query, original DB shows the 2nd row (ignores first row)

4 days ago

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

6 days ago

SQL Intermediate Practice Questions - LearnSQL.com

· In this query, we use the CASE expression to assign each product to a price segment based on its price. The CASE syntax works like an if-else structure: it checks conditions in order and returns the corresponding value. Here, products under $20 are labeled 'budget', those between $20 and $99.99 are 'middle', and anything $100 or more is 'premium'.

6 days ago

Top 10 Sql Syntax

sql - Can you specify 'unlimited' when using "Select TOP (@variable ...

5 days ago

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

6 days ago

PostgreSQL: Documentation: 18: Chapter 4. SQL Syntax

· This chapter describes the syntax of SQL. It forms the foundation for understanding the following chapters which will go into detail about how SQL commands are applied to define and modify data. We also advise users who are already familiar with SQL to read this chapter carefully because it contains several rules and concepts that are implemented inconsistently among SQL databases or that are ...

4 days ago

PostgreSQL: Documentation: 17: SELECT

· SELECT SELECT, TABLE, WITH — retrieve rows from a table or view Synopsis [ WITH [ RECURSIVE ] with_query [, …

4 days ago

PostgreSQL: Documentation: 17: Part II. The SQL Language

· This part describes the use of the SQL language in PostgreSQL. We start with describing the general syntax of SQL, then how to create tables, how to populate the database, and how to query it.

4 days ago

SQL SELECT Statement - Tpoint Tech - Java

· The SELECT statement is the most commonly used command in Structured Query Language. It is used to access the records from one or more database tables and vi...

Apr 16, 2025

Essential SQL Basics for Beginners - HTMLPlayground

· Master SQL basics and unlock the power of databases. Learn essential commands for data retrieval, modification, and more.

4 days ago

25 Best SQL Query Tools Reviewed In 2025 - The CTO Club

· Discover the top SQL query tool and find the best option for your team. Compare features, pros & cons, prices, and more in my complete guide.

6 days ago

Ms Sql Top 10 Rows

t sql - Is there a maximum number of rows you can specify for TOP on ...

May 5, 2025

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

6 days ago

sql server - How to SELECT TOP (1) with COALESCE to pick the top NOT ...

5 days ago

FROM clause plus JOIN, APPLY, PIVOT (T-SQL) - SQL Server

· In SQL Server, Azure SQL Database, and Azure SQL Managed Instance, this is the only sampling method available and is applied by default. SYSTEM applies a page-based sampling method in which a random set of pages from the table is chosen for the sample, and all the rows on those pages are returned as the sample subset.

4 days ago

Improve the performance of full-text queries - SQL Server

· In SQL Server, you can improve the performance of the query by filtering out rows early to reduce the number of rows that must be processed later. The method that this article describes uses the Table-Valued Function (TVF) to filter out rows early and to reduce the number of rows that must be processed later.

6 days ago

How to Implement Paging in SQL Server with OFFSET-FETCH

· Learn how to efficiently implement paging in SQL Server using the OFFSET-FETCH clause, improving query performance and data retrieval for large datasets with step-by-step guidance and practical examples.

5 days ago

TABLESAMPLE clause - Azure Databricks - Databricks SQL | Microsoft Learn

· REPEATABLE ( seed ) Applies to: Databricks SQL Databricks Runtime 11.3 LTS and above An optional positive INTEGER constant seed, used to always produce the same set of rows. Use this clause when you want to reissue the query multiple times, and you expect the same set of sampled rows.

3 days ago

SQL Server 常用操作、SQL整理 - 夏秋初 - 博客园

· SQL Server 的 SQL 可以简写，可以不写 []符号，可以用来简写或者关键字分隔。 SQL Server 默认 DTO 空间，如果是默认空间，则查询时可以省略。

4 days ago

Top 1 Query In Sql

Cross apply (select top 1) much slower than row_number()

· Using AdventureWorks, listed below are queries for For each Product get any 1 row of its associated SalesOrderDetail.. Using cross apply it takes 14000ms. The equivalent row_number version takes only 70ms (200x faster).. cross apply is also slower than a simple inner join of all Products and SalesOrderDetails which returns 121317 rows (vs 266 rows when limited with TOP 1).

4 days ago

sql server - How to SELECT TOP(1) with COALESCE to pick the top NOT ...

5 days ago

query - Strange behavior of TOP 1 clause sql server - Database ...

· But when I add TOP 1 clause to the above query, original DB shows the 2nd row (ignores first row) select TOP 1 person_id, visit_id, verification_code, mobileNo, created_date from person order by verification_code, created_date DESC ... Even if you would run that same query repeatedly only on your SQL Server 2014, you could not expect to get the ...

4 days ago

MAX CASE WHEN in SQL - Interview Query

· Using the second solution, let us build a pseudo code SQL query to accomplish precisely that. Concatenate the firstname, second name, ... 1. Write a query to select the top 3 departments with at least ten employees and rank them according to the percentage of their employees making over 100K in salary.

5 days ago

sql server - How to return greater than 1, but also show 1 - Database ...

· But know the SEQ selection works only for 1-digit numbers, since a text comparison is performed. The text '2' is greater than '10', because 2 follows 1 in the lexical order. To avoid this problem either store the sequence in an int column or convert SEQ to an int before making the comparison: CONVERT(int, CPNAME.SEQ) > 1

5 days ago

MySQL: How to Write a Query That Returns the Top Records ... - i2tutorials

· Here you can write a query that returns the top n records from a group or category. Over time,I’ve needed this type of query occasionally, and i always end up either iterating through a result set in code or doing an overly complex multi-query union.In retrospect, both methods are highly inefficient and stupid.

4 days ago

nesting MAX for SELECT - Database Administrators Stack Exchange

4 days ago

Top 5 In Sql Query

sql - How to select top five or 'N' rows in Oracle 11g - Stack Overflow

· Seeing your query, you seem to be interested only in a certain number of rows (not ordered based on certain column value) and so you can use ROWNUM clause to limit the number of rows being returned. select distinct ani_digit, ani_business_line from cta_tq_matrix_exp WHERE rownum <= 5

5 days ago

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

6 days ago

sql server - How to SELECT TOP(1) with COALESCE to pick the top NOT ...

5 days ago

MAX CASE WHEN in SQL - Interview Query

5 days ago

MySQL: How to Write a Query That Returns the Top Records ... - i2tutorials

4 days ago

query - Strange behavior of TOP 1 clause sql server - Database ...

· Mike D. has provided an answer on how SQL Server sorts data that might help you understand what is it about the deterministic result you see on some comments.. The Arguments of the ORDER BY doc says:. ASC | DESC Specifies that the values in the specified column should be sorted in ascending or descending order. ASC sorts from the lowest value to highest value.

4 days ago

PostgreSQL: Documentation: 17: 2.5. Querying a Table

· To retrieve data from a table, the table is queried.An SQL SELECT statement is used to do this. The statement is divided into a select list (the part that lists the columns to be returned), a table list (the part that lists the tables from which to retrieve the data), and an optional qualification (the part that specifies any restrictions).

4 days ago

sql server - SELECT top 5 SUMs (one per customer) for each month in ...

· T-SQL: Months in Top 5 query. 0. Select Top 10 Sales Amounts Every Month, Every Year SQL Server 2008. 0. SQL top five records per month and new column displaying this rank. 0. TOP 5 scores by month (month is a varchar) 1. SQL Server - Select top 10 providers based on charge amounts from 3rd quarter. 0.

5 days ago

Top 100 Sql Queries

100+ SQL Interview Questions and Answers - Intellipaat

· In conclusion, we covered the top 100+ SQL interview questions and answers in this article that help you prepare and crack SQL jobs. We focused on covering essential concepts of SQL, like the basics of SQL queries, joins, subqueries, indexing, and performance optimization. Whether you are a beginner or an expert, understanding these topics will ...

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6 days ago

75 SQL Interview Questions You Must Prepare For | 2025 - Simplilearn

· 75. Discuss advanced optimization techniques for SQL queries. Advanced optimization techniques for SQL queries include using query hints, indexing strategies, query rewriting, and understanding the query execution plan. Profiling tools and performance monitoring are essential for identifying and resolving performance bottlenecks. Conclusion

3 days ago

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

6 days ago

50+ Advanced SQL Interview Questions and Answers for 2025

· It mainly happens when the user input is not sanitized in the case of dynamic SQL queries. In order to avoid SQL Injection, one can apply prepared statements or parameterized queries that properly handle user inputs by validating and sanitizing data and limiting the database permissions to their minimum requirement. Q18.

5 days ago

100 MySQL Interview Questions and Answers (2024) - Turing

· Queries in MySQL are typically written using SQL (Structured Query Language), which is a standardized language designed to communicate with relational databases. A query typically consists of SQL commands, expressions, and operators that define criteria for how the database should search, filter, modify, or present the data.

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5 days ago

10 Oracle SQL Interview Questions (Updated 2025) - DataLemur

4 days ago

Sql Return Top 10 Rows

t sql - Is there a maximum number of rows you can specify for TOP on ...

May 5, 2025

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

6 days ago

sql server - How to SELECT TOP(1) with COALESCE to pick the top NOT ...

5 days ago

How to Implement Paging in SQL Server with OFFSET-FETCH

· M is the number of rows to return; Simple Paging Example-- Get page 3 of products (10 items per page) SELECT ProductID, ProductName, UnitPrice FROM Products ORDER BY ProductName OFFSET 20 ROWS -- Skip first 20 rows (pages 1-2) FETCH NEXT 10 ROWS ONLY; -- Get 10 rows for page 3 ... For SQL Server 2008 or earlier, use the ROW_NUMBER() approach ...

5 days ago

PostgreSQL: Documentation: 17: SELECT

· WITH Clause. The WITH clause allows you to specify one or more subqueries that can be referenced by name in the primary query. The subqueries effectively act as temporary tables or views for the duration of the primary query. Each subquery can be a SELECT, TABLE, VALUES, INSERT, UPDATE, DELETE, or MERGE statement. When writing a data-modifying statement (INSERT, UPDATE, DELETE, or MERGE) in ...

4 days ago

Oracle Sql Select Only Rows With Max Value In A Column Templates

· Here are three examples that use sql to find and select the row with the maximum value in a given column. the examples work in most major rdbms s, including mys. Take a fresh look at your lifestyle. Sign in Publisher - Innovation and Growth. Home; Productivity; Technology ...

5 days ago

Improve the performance of full-text queries - SQL Server

· The method that this article describes uses the Table-Valued Function (TVF) to filter out rows early and to reduce the number of rows that must be processed later. For example, the following query plan returns 131051 rows that match a CONTAINS search string. Additionally, a join operator in the plan performs additional filtering by using an ...

6 days ago

32.6. Retrieving Query Results in Chunks - PostgreSQL

· Ordinarily, libpq collects an SQL command's entire result and returns it to the application as a single PGresult.This can be unworkable for commands that return a large number of rows. For such cases, applications can use PQsendQuery and PQgetResult in single-row mode or chunked mode.In these modes, result row(s) are returned to the application as they are received from the server, one at a ...

4 days ago

Top 10 Sql Query Tools

25 Best SQL Query Tools Reviewed In 2025 - The CTO Club

· SQL Query Tools Selection Criteria. When selecting the best SQL query tool to include in this list, I considered common buyer needs and pain points like query performance optimization and multi-database compatibility. I also used the following framework to keep my evaluation structured and fair: Core Functionality (25% of total score)

6 days ago

15 Best SQL Editor Reviewed In 2025 - The CTO Club

· This comparison chart summarizes pricing details for my top SQL editors selections to help you find the best one for your budget and business needs. Tool Best For Trial Info Price; 1. ... RazorSQL is a versatile database query tool and SQL editor designed for database administrators and developers. It provides a platform for running SQL queries ...

6 days ago

Top SQL Formatter Tools: Enhance Your Database Queries with the Best ...

· When it comes to managing databases and writing SQL queries, the significance of a well-structured format cannot be overstated. SQL formatter tools play a vital role in enhancing readability, reducing errors, and improving collaboration among developers. They help maintain consistency across codebases, facilitate easier debugging, and optimize queries efficiently.

3 days ago

25 Best Database Management Software of 2025 - The CTO Club

· DevOps Tools. Our guide to the top 25 DevOps tools of 2024. Cybersecurity Software. The best tools available today for cybersecurity, based on features, performance and integrations ... while its visual query builder allows even novice users to construct complex queries without deep SQL knowledge. In addition, the software offers tools for ...

6 days ago

Best Database Software: Top 25 Management Tools [2025] - Improvado

· License extension to integrate third-party tools can take time. 9 SQL Developer. The open-source DBMS tool is a favourite of developers as one of the efficient DBMS tools to design, develop, and perform other database management activities. The best trait of SQL Developer is that it takes less time to execute multiple queries.

May 5, 2025

Top 12 Data Engineering Tools in 2025 for Modern Pipelines

· Category: Distributed SQL Query Engine. Trino is a high-performance, distributed SQL query engine designed for analytics across multiple data sources. Originally developed at Facebook (as Presto), Trino has evolved into the go-to tool for federated querying, letting data engineers query data where it lives, without having to centralize it first.

4 days ago

The 14 Best ETL Testing Tools in 2025 (Top Selective)

· Multiple SQL queries are required to be run for each and every row to verify data transformation standards. #5) Data Completeness Testing: ... The Top 10 API Testing Tools in 2025 (SOAP and REST Tools) Top 15 Mobile Testing Tools in 2025; Top 10+ Network Testing Tools (Network Performance Diagnostic Tools)

May 5, 2025

Best Database Diagram Tools– Free and Paid - blog.devart.com

· Best for full-featured SQL Server development and visual schema design . Free trial available + free Express Edition ; From $259.95/user (one-time or subscription pricing ; Rating: 4.8/5 dbForge Studio for SQL Server is an enterprise-grade IDE and one of the most complete SQL visual schema tools available for SQL Server database professionals ...

May 5, 2025

Sql Query Select Top 10

t sql - Is there a maximum number of rows you can specify for TOP on ...

May 5, 2025

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

· The above query will fetch the details of the employee with the 4th highest salary. Let us see how query works starting with the most inner query. Query 1: SELECT DISTINCT sal FROM Employee ORDER BY sal DESC LIMIT 4; Output: Query 2: SELECT MIN(sal) FROM Employee WHERE sal IN (SELECT DISTINCT sal FROM Employee ORDER BY sal DESC LIMIT 4); Output: 5.

6 days ago

sql server - How to SELECT TOP(1) with COALESCE to pick the top NOT ...

5 days ago

MySQL: How to Write a Query That Returns the Top Records ... - i2tutorials

· Here you can write a query that returns the top n records from a group or category. Over time,I’ve needed this type of query occasionally, and i always end up either iterating through a result set in code or doing an overly complex multi-query union.In retrospect, both methods are highly inefficient and stupid.

4 days ago

PostgreSQL: Documentation: 17: SELECT

4 days ago

How to Identify and Eliminate Expensive Queries in SQL Server

6 days ago

SQL SELECT Statement - Tpoint Tech - Java

· Description: SELECT: It is an SQL command which is used to show or retrieve the required data from the database. Column_Name_1, Column_Name_2, ….., Column_Name_N: They are the names of those columns in the table whose data we want to read. FROM: It is an SQL keyword which signifies the table from which we want to retrieve data. Table_Name: It is the name of the table from where we want to ...

3 days ago

sql - Querying a CSV file - Super User

A tutorial (and a another one) on using the SQL like query language with CSV files I found using google. Example Query: logparser -i:CSV "SELECT TOP 10 Time, Count INTO c:\logparser\test\Chart.GIF FROM c:\logparser\test\log.csv ORDER by Time DESC" -charttype:bar3d

Top Query In Sql Server

Is there a maximum number of rows you can specify for TOP on SQL Server?

May 5, 2025

sql server - How to SELECT TOP(1) with COALESCE to pick the top NOT ...

5 days ago

sql - Can you specify 'unlimited' when using "Select TOP (@variable ...

5 days ago

How to Find Nth Highest Salary from a Table? - GeeksforGeeks

· The inner query selects the top 6 salaries from the Employee table ordered in descending order. The outer query orders the results in ascending order to retrieve the 6th highest salary, ... We could use LAST_VALUE() in SQL Server to find the last value from any table. LAST_VALUE() function used in SQL server is a type of window function that ...

6 days ago

Troubleshooting and diagnostic tools for SQL Server on-premises and ...

· Microsoft Product support for SQL Server hybrid uses troubleshooting tools to help customers collect logs and narrow down technical issues. ... Scenarios to use: performance analysis, best practice recommendations, bottleneck analysis, blocking, and top queries. - Alternative: RML Utilities Scenarios to use: query analysis to understand top ...

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· (Companion SQL Server Latch Classes Library) This site lists all wait types in SQL Server 2005 through SQL Server 2022/Azure SQL Database and gives detailed information about where they occur inside SQL Server. I created this site to be a comprehensive resource for the SQL Server community as this information is not available anywhere else. I […]

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· Table 2 Parameter description for top SQL statement list Parameter. Description. ID. A binary hash value calculated for the query. IDs are used to identify queries with similar logic. Statement. SQL statement. To view details, click the statement name. SQL Text. Text of the SQL statement block. To view details, click the text name. Database

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· Here you can write a query that returns the top n records from a group or category. Over time,I’ve needed this type of query occasionally, and i always end up either iterating through a result set in code or doing an overly complex multi-query union.In retrospect, both methods are highly inefficient and stupid.

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· Using the 'rownum' to get the top result doesn't give the expected result, because it get the 10 first rows which are not ordred, and then order them (Please notify this on a comment on Andrew's response, I don't have the right to add the comment) .

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· The inner query selects the top 6 salaries from the Employee table ordered in descending order. The outer query orders the results in ascending order to retrieve the 6th highest salary, skipping the first 5 rows. Alternate Use of Limit select * from Employee ORDER BY `sal` DESC limit 5,1; // will return 6th highest . Output: 4.

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· MySQL: How to Write a Query That Returns the Top Records in a Group . Here you can write a query that returns the top n records from a group or category. Over time,I’ve needed this type of query occasionally, and i always end up either iterating through a result set in code or doing an overly complex multi-query union.In retrospect, both ...

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· LIMIT and OFFSET allow you to retrieve just a portion of the rows that are generated by the rest of the query:. SELECT select_list FROM table_expression [ORDER BY ...] [LIMIT { count | ALL } ] [OFFSET start] If a limit count is given, no more than that many rows will be returned (but possibly fewer, if the query itself yields fewer rows).

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· **SELECT**: This part of the query specifies what you want to get from the database. In this case, `[Item]` indicates that you´re interested in retrieving data from the column named “Item.” **TOP (1000)**: The `TOP` keyword is used to limit the number of rows returned by the query.

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· I have a list of values and I am wondering if it's possible to query by said list, rather than having to do an "or" for each row of values or add them into a table and query the table (as I'm about to do) Say, for example, my list is; 010, 46793, '329', '10' 011, 46798, '322', '12' 012, 33333, '111', '14' I'd like to query like this;

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· -- Get page 3 of products (10 items per page) SELECT ProductID, ProductName, UnitPrice FROM Products ORDER BY ProductName OFFSET 20 ROWS -- Skip first 20 rows (pages 1-2) FETCH NEXT 10 ROWS ONLY; -- Get 10 rows for page 3 Calculating OFFSET Value. For page-based navigation:

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· SQL Queries for Schema Relationships. To retrieve data from these tables, SQL queries can be utilized. For instance, to get all tables in a schema, you can use: SELECT * FROM sqlite_master WHERE type='table'; This command lists all tables in the current database schema. To find the average age of individuals in the Person table, you can execute:

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· I'm using the latest version of DBeaver on Mac, querying against a remote MSSQL database and I've got a query that results in 24 million rows. I need to get this data into CSV format, but rather than one huge, unmanageable file with 24 million lines in it, I'd like to get a series of files, each one having a smaller number of lines in them.

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· Beyond just solving the above Oracle SQL interview questions, you should also solve the 200+ DataLemur SQL Interview Questions which come from companies like FAANG and tech startups. Each DataLemur SQL question has multiple hints, step-by-step solutions and crucially, there is an interactive SQL code editor so you can right in the browser run your SQL query and have it checked.

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· SQL Queries Interview Questions and Answers for Experienced Professionals. The interviewers might present a SQL query and ask questions on the same. They can also ask you to write SQL queries. Here are some SQL query interview questions for experienced professionals. 19. Write an SQL Query to Display the Current Date.

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· 1.3 Using Performance Dashboard Reports. SQL Server Management Studio includes built-in performance reports that can quickly surface expensive queries: Right-click your server in Object Explorer. Select Reports > Standard Reports. Choose Performance - Top Queries by Average CPU Time or other relevant options. Section 2: Analyzing Expensive Queries

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· Query Performance: Top 10 CPU Consumers, Slowest Queries: 15 min: Wait Statistics: Top Waits by Type, Wait Trend ... Monitoring identifies abnormal conditions within SQL Server (such as elevated CPU utilization), while observability provides contextual information to determine causality (identifying the specific query causing CPU consumption ...

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· CPU Usage by SQL Processes. Monitor CPU consumption across different queries and procedures to identify resource hogs. Consistently track the top consumers using system views such as sys.dm_exec_query_stats and sys.dm_exec_sessions. Aim to maintain CPU utilization below 70% to ensure adequate resources for incoming requests.

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· Environment detail: SQL Server 2008 R2. I have applications running on JBoss that access the DB using JDBC driver. Issue: My online DB server was experiencing high CPU usage. Using the following query I was able to determine there are 2 queries (Select command) in suspended status (wait type - CXPACKET) for nearly 10 minutes and going on.

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· Let’s unravel the complexities of SQL Server waits and drive your system towards peak performance. Top 10 SQL Server Wait Types for Performance Tuning. Understanding these wait types is key to identifying performance bottlenecks in SQL Server: CXPACKET: Indicates parallelism-related waits. High values suggest inefficiencies in query ...

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· This article summarizes the diagnostic tools that SQL Server product support engineers have been using. The article details various troubleshooting scenarios and shows the corresponding log collection and log analysis tools. ... - Snapshots of SQL DMVs that track waits/blocking and high CPU queries - Query Data Store info (if that is active ...

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· If you try to delete 6.3M rows in one batch, it has to all be processed, and logged before it can be committed. Your log files will grow quickly, and hurt performance. Best practice here is to delete in batches. If you're on a production server, it might be nice to add a waitfor to give the server some time to breathe. WAITFOR DELAY '00:00:10'

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· For example, if you want to retrieve only the first 10 records from a dataset, your query would look like this: SELECT order_id, order_date FROM orders LIMIT 10; This query efficiently fetches only the specified number of rows, allowing for quicker testing and validation of your SQL logic. Practical Example of LIMIT

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· Unless I am missing something, your query would be something like this: select created, count(*) CreatedCount from yourtable group by created order by created; See SQL Fiddle with Demo. Or if you have a time associated with the date, you can use TRUNC:

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· Hi Team, I need a working sql query to get the previous and present records of job, salary amount, department and grade in BI Reports. Parameters: - Action Code, from date and to date Actually, it should work on below cases without any issues 1. If in a same day multiple changes done should also fetch the previous and present values 2. Should also fetch the records which are updated in ...

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75 SQL Interview Questions You Must Prepare For | 2025 - Simplilearn

· Top SQL Interview Questions: 1. Explain the differences between SQL and NoSQL databases. ... The WHERE clause within SQL queries serves the purpose of selectively filtering rows according to specified conditions, thereby enabling you to fetch exclusively those rows that align with the criteria you define. For example:

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10 Oracle SQL Interview Questions (Updated 2025) - DataLemur

· This will return all rows from Oracle employees where there is no matching row in managers based on the . column. You can also use the . operator in PostgreSQL and Microsoft SQL Server to return the records that are in the first table but not in the second. Here is an example: This will retrieve all rows from employees that do not appear in ...

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