在SQL Server 中查询表结构及索引 - yiyishuitian

在SQL Server 中查询表结构及索引 1.表结构信息查询 表结构信息查询

SELECT 
     TableName=CASE WHEN C.column_id=1 THEN O.name ELSE N\'\' END,
     TableDesc=ISNULL(CASE WHEN C.column_id=1 THEN PTB.[value] END,N\'\'),
     Column_id=C.column_id,
     ColumnName=C.name,
     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=T.name,
     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 C.user_type_id=T.user_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 PFD.name=\'Caption\'   -- 字段说明对应的描述名称(一个字段可以添加多个不同name的描述)
     LEFT JOIN sys.extended_properties PTB
         ON PTB.class=1 
             AND PTB.minor_id=0 
             AND C.[object_id]=PTB.major_id
--              AND PFD.name=\'Caption\'   -- 表说明对应的描述名称(一个表可以添加多个不同name的描述) 

LEFT JOIN                        -- 索引及主键信息
     (
         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=IDX.Name
         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   -- 对于一个列包含多个索引的情况,只显示第1个索引信息
         (
             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 O.name=N\'要查询的表\'        -- 如果只查询指定表,加上此条件
ORDER BY O.name,C.column_id

2. 索引及主键信息

SELECT 
     TableId=O.[object_id],
     TableName=O.Name,
     IndexId=ISNULL(KC.[object_id],IDX.index_id),
     IndexName=IDX.Name,
     IndexType=ISNULL(KC.type_desc,\'Index\'),
     Index_Column_id=IDXC.index_column_id,
     ColumnID=C.Column_id,
     ColumnName=C.Name,
     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,
     [UQIQUE]=CASE WHEN IDX.is_unique=1 THEN N\'√\'ELSE N\'\' END,
     Ignore_dup_key=CASE WHEN IDX.ignore_dup_key=1 THEN N\'√\'ELSE N\'\' END,
     Disabled=CASE WHEN IDX.is_disabled=1 THEN N\'√\'ELSE N\'\' END,
     Fill_factor=IDX.fill_factor,
     Padded=CASE WHEN IDX.is_padded=1 THEN N\'√\'ELSE N\'\' END
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 sys.objects O
         ON O.[object_id]=IDX.[object_id]
     INNER JOIN sys.columns C
         ON O.[object_id]=C.[object_id]
             AND O.type=\'U\'
             AND O.is_ms_shipped=0
             AND IDXC.Column_id=C.Column_id
--     INNER JOIN   -- 对于一个列包含多个索引的情况,只显示第1个索引信息
--     (
--         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

转自 http://www.51cto.com/specbook/52/11417.htm