OBJECT_NAME (Transact-SQL)
Applies to:
SQL Server
Azure SQL Database
Azure SQL Managed Instance
Azure Synapse Analytics
Analytics Platform System (PDW)
Returns the database object name for schema-scoped objects. For a list of schema-scoped objects, see sys.objects (Transact-SQL).
Transact-SQL syntax conventions
Syntax
OBJECT_NAME ( object_id [, database_id ] )
Note
To view Transact-SQL syntax for SQL Server 2014 (12.x) and earlier versions, see Previous versions documentation.
Arguments
object_id
Is the ID of the object to be used. object_id is int and is assumed to be a schema-scoped object in the specified database, or in the current database context.
database_id
Is the ID of the database where the object is to be looked up. database_id is int.
Return Types
sysname
Exceptions
Returns NULL on error or if a caller does not have permission to view the object. If the target database has the AUTO_CLOSE option set to ON, the function will open the database.
A user can only view the metadata of securables that the user owns or on which the user has been granted permission. This means that metadata-emitting, built-in functions such as OBJECT_NAME may return NULL if the user does not have any permission on the object. For more information, see Metadata Visibility Configuration.
Permissions
Requires ANY permission on the object. To specify a database ID, CONNECT permission to the database is also required, or the guest account must be enabled.
Remarks
System functions can be used in the select list, in the WHERE clause, and anywhere an expression is allowed. For more information, see Expressions and WHERE.
The value returned by this system function uses the collation of the current database.
By default, the SQL Server Database Engine assumes that object_id is in the context of the current database. A query that references an object_id in another database returns NULL or incorrect results. For example, in the following query the context of the current database is AdventureWorks2022. The Database Engine tries to return an object name for the specified object ID in that database instead of the database specified in the FROM clause of the query. Therefore, incorrect information is returned.
USE AdventureWorks2022;
GO
SELECT DISTINCT OBJECT_NAME(object_id)
FROM master.sys.objects;
GO
You can resolve object names in the context of another database by specifying a database ID. The following example specifies the database ID for the master
database in the OBJECT_SCHEMA_NAME
function and returns the correct results.
USE AdventureWorks2022;
GO
SELECT DISTINCT OBJECT_SCHEMA_NAME(object_id, 1) AS schema_name
FROM master.sys.objects;
GO
Examples
A. Using OBJECT_NAME in a WHERE clause
The following example returns columns from the sys.objects
catalog view for the object specified by OBJECT_NAME
in the WHERE
clause of the SELECT
statement.
USE AdventureWorks2022;
GO
DECLARE @MyID INT;
SET @MyID = (SELECT OBJECT_ID('AdventureWorks2022.Production.Product',
'U'));
SELECT name, object_id, type_desc
FROM sys.objects
WHERE name = OBJECT_NAME(@MyID);
GO
B. Returning the object schema name and object name
The following example returns the object schema name, object name, and SQL text for all cached query plans that are not ad hoc or prepared statements.
SELECT DB_NAME(st.dbid) AS database_name,
OBJECT_SCHEMA_NAME(st.objectid, st.dbid) AS schema_name,
OBJECT_NAME(st.objectid, st.dbid) AS object_name,
st.text AS query_text
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
WHERE st.objectid IS NOT NULL;
GO
C. Returning three-part object names
The following example returns the database, schema, and object name along with all other columns in the sys.dm_db_index_operational_stats
dynamic management view for all objects in all databases.
SELECT QUOTENAME(DB_NAME(database_id))
+ N'.'
+ QUOTENAME(OBJECT_SCHEMA_NAME(object_id, database_id))
+ N'.'
+ QUOTENAME(OBJECT_NAME(object_id, database_id))
, *
FROM sys.dm_db_index_operational_stats(NULL, NULL, NULL, NULL);
GO
Examples: Azure Synapse Analytics and Analytics Platform System (PDW)
D. Using OBJECT_NAME in a WHERE clause
The following example returns columns from the sys.objects
catalog view for the object specified by OBJECT_NAME
in the WHERE
clause of the SELECT
statement. (Your object number (274100017 in the example below) will be different. To test this example, look up a valid object number by executing SELECT name, object_id FROM sys.objects;
in your database.)
SELECT name, object_id, type_desc
FROM sys.objects
WHERE name = OBJECT_NAME(274100017);
See Also
Metadata Functions (Transact-SQL)
OBJECT_DEFINITION (Transact-SQL)
OBJECT_ID (Transact-SQL)