表结构信息查询

--sql server 2000
SELECT
    表名       = case when a.colorder=1 then d.name else '' end,
    表说明     = case when a.colorder=1 then isnull(f.value,'') else '' end,
    字段序号   = a.colorder,
    字段名     = a.name,
    标识       = case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end,
    主键       = case when exists(SELECT 1 FROM sysobjects where xtype='PK' and parent_obj=a.id and name in (
                     SELECT name FROM sysindexes WHERE indid in( SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid))) then '√' else '' end,
    类型       = b.name,
    占用字节数 = a.length,
    长度       = COLUMNPROPERTY(a.id,a.name,'PRECISION'),
    小数位数   = isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
    允许空     = case when a.isnullable=1 then '√'else '' end,
    默认值     = isnull(e.text,''),
    字段说明   = isnull(g.[value],'')
FROM
    syscolumns a
left join
    systypes b
on
    a.xusertype=b.xusertype
inner join
    sysobjects d
on
    a.id=d.id  and d.xtype='U' and  d.name<>'dtproperties'
left join
    syscomments e
on
    a.cdefault=e.id
left join
    sysproperties g
on
    a.id=g.id and a.colid=g.smallid 
left join
    sysproperties f
on
    d.id=f.id and f.smallid=0
where
    d.name='要查询的表'    --如果只查询指定表,加上此条件
order by
    a.id,a.colorder

/*
表名    表说明 字段序号 字段名    标识 主键    类型    占用字节数 长度 小数位数 允许空  默认值      字段说明
------- ----- -------  -------- ---- ------- ------ ------- --------------- ------ ---------- ----------
authors       1        au_id          √     id      11     11      0                         
              2        au_lname              varchar 40     40      0                         
              3        au_fname              varchar 20     20      0                         
              4        phone                 char    12     12      0              ('UNKNOWN')
              5        address               varchar 40     40      0       √                
              6        city                  varchar 20     20      0       √                
              7        state                 char    2      2       0       √                
              8        zip                   char    5      5       0       √                
              9        contract              bit     1      1       0                         
（所影响的行数为 9 行）
*/
--sql server 2005
-- 1. 表结构信息查询
-- ========================================================================
-- 表结构信息查询
-- 邹建 2005.08(引用请保留此信息)
-- ========================================================================
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
-- ========================================================================
-- 索引及主键信息
-- 邹建 2005.08(引用请保留此信息)
-- ========================================================================
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

--  主键.外键.约束.视图.函数.存储过程.触发器

SELECT DISTINCT o.xtype, 

    CASE o.xtype WHEN 'X' THEN '扩展存储过程' WHEN 'TR' THEN '触发器'

       WHEN 'PK' THEN '主键' WHEN 'F' THEN '外键' WHEN 'C' THEN '约束'

       WHEN 'V' THEN '视图' WHEN 'FN' THEN '函数-标量' WHEN 'IF'

       THEN '函数-内嵌' WHEN 'TF' THEN '函数-表值' ELSE '存储过程' 

    END AS 类型,

    o.name AS 对象名,

    o.crdate AS 创建时间,

    o.refdate AS 更改时间, 

    c.text AS 声明语句 

FROM dbo.sysobjects o

    LEFT OUTER JOIN dbo.syscomments c

       ON o.id = c.id 

WHERE (o.xtype IN ('X', 'TR', 'C', 'V', 'F', 'IF', 'TF', 'FN', 'P', 'PK'))

    AND (OBJECTPROPERTY(o.id, N'IsMSShipped') = 0) 

ORDER BY o.xtype

 

 

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