select sys.columns.name,sys.types.name,sys.columns.precision,sys.columns.scale,sys.columns.is_nullable,(select count(*) from sys.identity_columns where sys.identity_columns.object_id = sys.columns.object_id and sys.columns.column_id = sys.identity_columns.column_id) as is_identity,(select value from sys.extended_properties where sys.extended_properties.major_id = sys.columns.object_id and sys.extended_properties.minor_id = sys.columns.column_id) as description,( SELECT count(*) FROM sysobjects WHERE (name in (SELECT name FROM sysindexes WHERE (id = a.id) AND (indid in (SELECT indid FROM sysindexkeys WHERE (id = a.id) AND (colid in (SELECT colid FROM syscolumns WHERE (id = a.id) AND (name = a.name))))))) AND (xtype = 'PK') ) as is_key from sys.columns,sys.tables,sys.types,syscolumns a where sys.columns.object_id = sys.tables.object_id and sys.columns.system_type_id=sys.types.system_type_id and a.id = sys.tables.object_id and a.id = sys.columns.object_id and a.name = sys.columns.name and sys.tables.name='yk_typk' order by sys.columns.column_id
YPCD numeric 4 0 0 0 NULL 1 CDMC varchar 0 0 1 0 NULL 0 PYDM varchar 0 0 1 0 NULL 0 CDQC varchar 0 0 1 0 NULL 0