Data Type Functions (Transact-SQL)

**APPLIES TO:** ![yes](media/yes.png)SQL Server (starting with 2012) ![no](media/no.png)Azure SQL Database ![no](media/no.png)Azure SQL Data Warehouse ![no](media/no.png)Parallel Data Warehouse

These scalar functions return information about various data type values.

In this section

DATALENGTH (Transact-SQL)	IDENT_SEED (Transact-SQL)
IDENT_CURRENT (Transact-SQL)	IDENTITY (Function) (Transact-SQL)
IDENT_INCR (Transact-SQL)	SQL_VARIANT_PROPERTY (Transact-SQL)