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