The meta data is from an SQL 2012 Server.
I have posted alot more, find the whole list here.
Goto Definition or MetaData
Definition:
sys.sp_foreign_keys_rowset2(nvarchar @foreignkey_tab_name, nvarchar @foreignkey_tab_schema
, nvarchar @pk_table_name
, nvarchar @pk_table_schema
, nvarchar @pk_table_catalog)
MetaData:
create procedure sys.sp_foreign_keys_rowset2 ( @foreignkey_tab_name sysname, @foreignkey_tab_schema sysname = null, @pk_table_name sysname = null, @pk_table_schema sysname = null, @pk_table_catalog sysname = null ) as select -- PK_TABLE_CATALOG = db_name(r.rkeydbid), PK_TABLE_CATALOG = db_name(), PK_TABLE_SCHEMA = schema_name(o1.schema_id), PK_TABLE_NAME = o1.name, PK_COLUMN_NAME = c1.name, PK_COLUMN_GUID = convert(uniqueidentifier,null), PK_COLUMN_PROPID = convert(int,null), -- FK_TABLE_CATALOG = db_name(r.fkeydbid), FK_TABLE_CATALOG = db_name(), FK_TABLE_SCHEMA = schema_name(o2.schema_id), FK_TABLE_NAME = o2.name, FK_COLUMN_NAME = c2.name, FK_COLUMN_GUID = convert(uniqueidentifier,null), FK_COLUMN_PROPID = convert(int,null), ORDINAL = convert(int,k.constraint_column_id), -- UPDATE_RULE = CASE ObjectProperty(r.constid, 'CnstIsUpdateCascade') UPDATE_RULE = CASE r.update_referential_action WHEN 1 THEN N'CASCADE' WHEN 2 THEN N'SET NULL' WHEN 3 THEN N'SET DEFAULT' ELSE N'NO ACTION' END, -- DELETE_RULE = CASE ObjectProperty(r.constid, 'CnstIsDeleteCascade') DELETE_RULE = CASE r.delete_referential_action WHEN 1 THEN N'CASCADE' WHEN 2 THEN N'SET NULL' WHEN 3 THEN N'SET DEFAULT' ELSE N'NO ACTION' END, PK_NAME = i.name, -- FK_NAME = object_name(r.constid), FK_NAME = object_name(r.object_id), DEFERRABILITY = convert(smallint, 3) -- DBPROPVAL_DF_NOT_DEFERRABLE from sys.all_objects o1, -- ISSUE - PERF - do inner joins here instead of old join in where clause !!! sys.all_objects o2, -- ISSUE - PERF - do inner joins here instead of old join in where clause !!! sys.all_columns c1, sys.all_columns c2, -- sysreferences r, sys.foreign_keys r inner join sys.foreign_key_columns k on (k.constraint_object_id = r.object_id) inner join sys.indexes i on (r.referenced_object_id = i.object_id and r.key_index_id = i.index_id) where (@pk_table_catalog is null or @pk_table_catalog = db_name()) and (@pk_table_name is null or @pk_table_name = o1.name) -- ISSUE - PERF - Do check against object_id, not against the names !!! and (@pk_table_schema is null or @pk_table_schema = schema_name(o1.schema_id)) -- ISSUE - PERF - Do check against object_id, not against the names !!! and ( @foreignkey_tab_name = o2.name) -- ISSUE - PERF - Do check against object_id, not against the names !!! and (@foreignkey_tab_schema is null or @foreignkey_tab_schema = schema_name(o2.schema_id)) -- ISSUE - PERF - Do check against object_id, not against the names !!! and o1.object_id = r.referenced_object_id and o1.object_id = c1.object_id and c1.column_id = k.referenced_column_id and o2.object_id = r.parent_object_id and o2.object_id = c2.object_id and c2.column_id = k.parent_column_id order by 8,9,2,3,13
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