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11. Date Functions

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The following table lists the most important built-in date functions in SQL Server:

Function
Description
GETDATE()
Returns the current date and time
DATEPART()
Returns a single part of a date/time
DATEADD()
Adds or subtracts a specified time
interval from a date
DATEDIFF()
Returns the time between two dates
CONVERT()
Displays date/time data in different formats

SQL Server comes with the following data types for storing a date or a date/time value in the database:
§ DATE - format YYYY-MM-DD
§ DATETIME - format: YYYY-MM-DD HH:MI:SS
§ SMALLDATETIME - format: YYYY-MM-DD HH:MI:SS

§ TIMESTAMP - format: a unique number








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