查询出各（某）表字段的属性

SQL code

   

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    --
    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 code

   

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    --
    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