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SCHEMA_ID (Transact-SQL)

Returns the schema ID associated with a schema name.

Topic link icon Transact-SQL Syntax Conventions

SCHEMA_ID( [ schema_name ] ) 

Term Definition


Is the name of the schema. schema_name is a sysname. If schema_name is not specified, SCHEMA_ID will return the ID of the default schema of the caller.


NULL will be returned if schema_name is not a valid schema.

SCHEMA_ID will return IDs of system schemas and user-defined schemas. SCHEMA_ID can be called in a select list, in a WHERE clause, and anywhere an expression is allowed.

A. Returning the default schema ID of a caller

select schema_id();

B. Returning the schema ID of a named schema

USE AdventureWorks;
SELECT SCHEMA_ID('HumanResources');