ROUTINES (Transact-SQL)

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

Returns one row for each stored procedure and function that can be accessed by the current user in the current database. The columns that describe the return value apply only to functions. For stored procedures, these columns will be NULL.

To retrieve information from these views, specify the fully qualified name of INFORMATION_SCHEMA.view_name.

Note

The ROUTINE_DEFINITION column contains the source statements that created the function or stored procedure. These source statements are likely to contain embedded carriage returns. If you are returning this column to an application that displays the results in a text format, the embedded carriage returns in the ROUTINE_DEFINITION results may affect the formatting of the overall result set. If you select the ROUTINE_DEFINITION column, you must adjust for the embedded carriage returns; for example, by returning the result set into a grid or returning ROUTINE_DEFINITION into its own text box.

Column name Data type Description
SPECIFIC_CATALOG nvarchar(128) Specific name of the catalog. This name is the same as ROUTINE_CATALOG.
SPECIFIC_SCHEMA nvarchar(128) Specific name of the schema.

** Important *\* Do not use INFORMATION_SCHEMA views to determine the schema of an object. The only reliable way to find the schema of a object is to query the sys.objects catalog view.
SPECIFIC_NAME nvarchar(128) Specific name of the catalog. This name is the same as ROUTINE_NAME.
ROUTINE_CATALOG nvarchar(128) Catalog name of the function.
ROUTINE_SCHEMA nvarchar(128) Name of the schema that contains this function.

** Important *\* Do not use INFORMATION_SCHEMA views to determine the schema of an object. The only reliable way to find the schema of a object is to query the sys.objects catalog view.
ROUTINE_NAME nvarchar(128) Name of the function.
ROUTINE_TYPE nvarchar(20) Returns PROCEDURE for stored procedures, and FUNCTION for functions.
MODULE_CATALOG nvarchar(128) NULL. Reserved for future use.
MODULE_SCHEMA nvarchar(128) NULL. Reserved for future use.
MODULE_NAME nvarchar(128) NULL. Reserved for future use.
UDT_CATALOG nvarchar(128) NULL. Reserved for future use.
UDT_SCHEMA nvarchar(128) NULL. Reserved for future use.
UDT_NAME nvarchar(128) NULL. Reserved for future use.
DATA_TYPE nvarchar(128) Data type of the return value of the function. Returns table if a table-valued function.
CHARACTER_MAXIMUM_LENGTH int Maximum length in characters, if the return type is a character type.

-1 for xml and large-value type data.
CHARACTER_OCTET_LENGTH int Maximum length in bytes, if the return type is a character type.

-1 for xml and large-value type data.
COLLATION_CATALOG nvarchar(128) Always returns NULL.
COLLATION_SCHEMA nvarchar(128) Always returns NULL.
COLLATION_NAME nvarchar(128) Collation name of the return value. For noncharacter types, returns NULL.
CHARACTER_SET_CATALOG nvarchar(128) Always returns NULL.
CHARACTER_SET_SCHEMA nvarchar(128) Always returns NULL.
CHARACTER_SET_NAME nvarchar(128) Name of the character set of the return value. For noncharacter types, returns NULL.
NUMERIC_PRECISION smallint Numeric precision of the return value. For the nonnumeric types, returns NULL.
NUMERIC_PRECISION_RADIX smallint Numeric precision radix of the return value. For nonnumeric types, returns NULL.
NUMERIC_SCALE smallint Scale of the return value. For nonnumeric types, returns NULL.
DATETIME_PRECISION smallint Fractional precision of a second if the return value is of type datetime. Otherwise, returns NULL.
INTERVAL_TYPE nvarchar(30) NULL. Reserved for future use.
INTERVAL_PRECISION smallint NULL. Reserved for future use.
TYPE_UDT_CATALOG nvarchar(128) NULL. Reserved for future use.
TYPE_UDT_SCHEMA nvarchar(128) NULL. Reserved for future use.
TYPE_UDT_NAME nvarchar(128) NULL. Reserved for future use.
SCOPE_CATALOG nvarchar(128) NULL. Reserved for future use.
SCOPE_SCHEMA nvarchar(128) NULL. Reserved for future use.
SCOPE_NAME nvarchar(128) NULL. Reserved for future use.
MAXIMUM_CARDINALITY bigint NULL. Reserved for future use.
DTD_IDENTIFIER nvarchar(128) NULL. Reserved for future use.
ROUTINE_BODY nvarchar(30) Returns SQL for a Transact-SQL function and EXTERNAL for an externally written function.

Functions will always be SQL.
ROUTINE_DEFINITION nvarchar(4000) Returns the first 4000 characters of the definition text of the function or stored procedure if the function or stored procedure is not encrypted. Otherwise, returns NULL.

To ensure that you obtain the complete definition, query the OBJECT_DEFINITION function or the definition column in the sys.sql_modules catalog view.
EXTERNAL_NAME nvarchar(128) NULL. Reserved for future use.
EXTERNAL_LANGUAGE nvarchar(30) NULL. Reserved for future use.
PARAMETER_STYLE nvarchar(30) NULL. Reserved for future use.
IS_DETERMINISTIC nvarchar(10) Returns YES if the routine is deterministic.

Returns NO if the routine is nondeterministic.

Always returns NO for stored procedures.
SQL_DATA_ACCESS nvarchar(30) Returns one of the following values:

NONE = Function does not contain SQL.

CONTAINS = Function possibly contains SQL.

READS = Function possibly reads SQL data.

MODIFIES = Function possibly modifies SQL data.

Returns READS for all functions, and MODIFIES for all stored procedures.
IS_NULL_CALL nvarchar(10) Indicates whether the routine will be called if any one of its arguments is NULL.
SQL_PATH nvarchar(128) NULL. Reserved for future use.
SCHEMA_LEVEL_ROUTINE nvarchar(10) Returns YES if schema-level function, or NO if not a schema-level function.

Always returns YES.
MAX_DYNAMIC_RESULT_SETS smallint Maximum number of dynamic result sets returned by routine.

Returns 0 if functions.
IS_USER_DEFINED_CAST nvarchar(10) Returns YES if user-defined cast function, and NO if not a user-defined cast function.

Always returns NO.
IS_IMPLICITLY_INVOCABLE nvarchar(10) Returns YES if the routine can be implicitly invoked, and NO if function cannot be implicitly invoked.

Always returns NO.
CREATED datetime Time when the routine was created.
LAST_ALTERED datetime The last time the function was modified.

See Also

System Views (Transact-SQL)
Information Schema Views (Transact-SQL)
sys.columns (Transact-SQL)
sys.objects (Transact-SQL)
sys.procedures (Transact-SQL)
sys.sql_modules (Transact-SQL)