SQL - Useful Functions
SQL - Useful Functions
SQL has many built-in functions for performing processing on string or numeric data. Following is the list of all useful SQL built-in functions −
- SQL COUNT Function- The SQL COUNT aggregate function is used to count the number of rows in a database table.
- SQL AVG Function- The SQL AVG aggregate function selects the average value for certain table column.
- SQL SUM Function- The SQL SUM aggregate function allows selecting the total for a numeric column.
- SQL SQRT Functions- This is used to generate a square root of a given number.
- SQL RAND Function- This is used to generate a random number using SQL command.
- SQL CONCAT Function- This is used to concatenate any string inside any SQL command.
- SQL Numeric Functions- Complete list of SQL functions required to manipulate numbers in SQL.
- SQL String Functions- Complete list of SQL functions required to manipulate strings in SQL.