SQL查找数据库字段属性

SELECT TableName=CASE WHEN C.column_id=1 THEN ELSE N'' END,
TableDesc=ISNULL(CASE WHEN C.column_id=1 THEN PTB.[value] END,N''),
Column_id=C.column_id, ColumnName=,
PrimaryKey=ISNULL(IDX.PrimaryKey,N''),
[IDENTITY]=CASE WHEN C.is_identity=1 THEN N'√'ELSE N'' END,
Computed=CASE WHEN C.is_computed=1 THEN N'√'ELSE N'' END,
Type=, Length=C.max_length, Precision=C.precision,
Scale=C.scale, NullAble=CASE WHEN C.is_nullable=1 THEN N'√'ELSE N'' END,
[Default]=ISNULL(D.definition,N''), ColumnDesc=ISNULL(PFD.[value],N''),
IndexName=ISNULL(IDX.IndexName,N''),
IndexSort=ISNULL(IDX.Sort,N''),
Create_Date=O.Create_Date,
Modify_Date=O.Modify_date FROM sys.columns C
INNER JOIN sys.objects O ON C.[object_id]=O.[object_id]
AND O.type='U' AND O.is_ms_shipped=0
INNER JOIN sys.types T ON er_type_id=er_type_id
LEFT JOIN sys.default_constraints D ON C.[object_id]=D.parent_object_id
AND C.column_id=D.parent_column_id
AND C.default_object_id=D.[object_id]
LEFT JOIN sys.extended_properties PFD ON PFD.class=1
AND C.[object_id]=PFD.major_id
AND C.column_id=PFD.minor_id --
AND ='Caption'

LEFT JOIN sys.extended_properties PTB
ON PTB.class=1
AND PTB.minor_id=0
AND C.[object_id]=PTB.major_id
AND ='Caption'
LEFT JOIN
( SELECT IDXC.[object_id], IDXC.column_id,

Sort=CASE INDEXKEY_PROPERTY(IDXC.[object_id],IDXC.index_id,IDXC.index_column_id,'IsDescending')
WHEN 1 THEN 'DESC' WHEN 0 THEN 'ASC' ELSE '' END,
PrimaryKey=CASE WHEN IDX.is_primary_key=1 THEN N'√'ELSE N'' END,
IndexName= FROM sys.indexes IDX INNER JOIN sys.index_columns IDXC
ON IDX.[object_id]=IDXC.[object_id] AND IDX.index_id=IDXC.index_id
LEFT JOIN sys.key_constraints KC ON IDX.[object_id]=KC.[parent_object_id]
AND IDX.index_id=KC.unique_index_id
INNER JOIN
( SELECT [object_id], Column_id, index_id=MIN(index_id)
FROM sys.index_columns GROUP BY [object_id], Column_id ) IDXCUQ ON IDXC.[object_id]=IDXCUQ.[object_id]
AND IDXC.Column_id=IDXCUQ.Column_id AND IDXC.index_id=IDXCUQ.index_id ) IDX ON C.[object_id]=IDX.[object_id]
AND C.column_id=IDX.column_id
WHERE =N'Bussiness' ORDER BY ,C.column_id