sys.assembly_modules (Transact-SQL)


THIS TOPIC APPLIES TO:yesSQL Server (starting with 2008)noAzure SQL DatabaseyesAzure SQL Data Warehouse yesParallel Data Warehouse

Returns one row for each function, procedure or trigger that is defined by a common language runtime (CLR) assembly. This catalog view maps CLR stored procedures, CLR triggers, or CLR functions to their underlying implementation. Objects of type TA, AF, PC, FS, and FT have an associated assembly module. To find the association between the object and the assembly, you can join this catalog view to other catalog views. For example, when you create a CLR stored procedure, it is represented by one row in sys.objects, one row in sys.procedures (which inherits from sys.objects), and one row in sys.assembly_modules. The stored procedure itself is represented by the metadata in sys.objects and sys.procedures. References to the procedure’s underlying CLR implementation are found in sys.assembly_modules.

Column nameData typeDescription
object_idintObject identification number of the SQL object. Is unique within a database.
assembly_idintID of the assembly from which this module was created.
assembly_classsysnameName of the class within the assembly that defines this module.
assembly_methodsysnameName of the method within the assembly_class that defines this module.

NULL for aggregate functions (AF).
null_on_null_inputbitModule was declared to produce a NULL output for any NULL input.
execute_as_principal_idintID of the database principal under which the context execution occurs, as specified by the EXECUTE AS clause of the CLR function, stored procedure, or trigger.

NULL = EXECUTE AS CALLER. This is the default.

ID of the specified database principal = EXECUTE AS SELF, EXECUTE AS user_name, or EXECUTE AS login_name.


The visibility of the metadata in catalog views is limited to securables that a user either owns or on which the user has been granted some permission. For more information, see Metadata Visibility Configuration.

Object Catalog Views (Transact-SQL)
Catalog Views (Transact-SQL)

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