SQL LEN Function
The LEN function returns the length of the value in a text field. Employees Table employeeID employeeName age 1000 John Smith 40 1001 Fred White 27 1002 Jane Scott 53 …
MySQL DATEDIFF Function
The MySQL DATEDIFF function returns the difference in time between two dates. Syntax Example Results
SQL TRUNCATE Table Statement
The SQL TRUNCATE statement can be used to delete rows from a table without deleting the table itself. Syntax
MySQL NOW Function
The MySQL NOW function is used to display the current date and time. The equivalent function in Microsoft SQL Server is GETDATE. Syntax Example Results
SQL Where Clause
The WHERE clause is used to filter records, generally in combination with the SELECT statement. The WHERE clause is used to request only those records that fulfill a specified query. …