Standard Sql Functions Cheat Sheet

The Standard SQL Functions Cheat Sheet is a document that provides a quick reference guide for the various functions available in standard SQL. It helps users understand and use the different functions to manipulate and retrieve data in SQL databases.

FAQ

Q: What is a SQL function?
A: A SQL function is a predefined subroutine that you can call within SQL statements.

Q: What are some commonly used SQL functions?
A: Some commonly used SQL functions include COUNT, SUM, AVG, MIN, MAX, and CONCAT.

Q: What does the COUNT function do?
A: The COUNT function returns the number of rows that match a specific condition.

Q: What does the SUM function do?
A: The SUM function calculates the sum of a numeric column for a given condition.

Q: What does the AVG function do?
A: The AVG function calculates the average value of a numeric column for a given condition.

Q: What does the MIN function do?
A: The MIN function returns the minimum value of a column for a given condition.

Q: What does the MAX function do?
A: The MAX function returns the maximum value of a column for a given condition.

Q: What does the CONCAT function do?
A: The CONCAT function concatenates two or more strings together.

Q: Can SQL functions be used with GROUP BY clause?
A: Yes, SQL functions can be used with the GROUP BY clause to perform calculations on groups of data.