sql server递归子节点、父节点sql查询表结构的实例

WITH dept
AS ( SELECT *
FROM dbo.deptTab –部门表
WHERE pid = @id
UNION ALL
SELECT d.*
FROM dbo.deptTab d
INNER JOIN dept ON d.pid = dept.id
)
SELECT *
FROM dept

WITH tab
AS ( SELECT DepId ,
ParentId ,
DepName ,
[Enable] ,
0 AS [Level]
FROM deptTab WITH ( NOLOCK ) –表名
WHERE [Enable] = 1
AND depId = @depId
UNION ALL
SELECT b.DepId ,
b.ParentId ,
b.DepName ,
b.[Enable] ,
a.[Level] + 1
FROM tab a ,
deptTab b WITH ( NOLOCK )
WHERE a.ParentId = b.depId
AND b.[enable] = 1
)
SELECT *
FROM tab WITH ( NOLOCK )
WHERE [enable] = 1
ORDER BY [level] DESC

SELECT tbs.name 表名 ,
ds.value 描述
FROM sys.extended_properties ds
LEFT JOIN sysobjects tbs ON ds.major_id = tbs.id
WHERE ds.minor_id = 0
AND tbs.name = ‘userTab’;–表名

SELECT CASE WHEN col.colorder = 1 THEN obj.name
ELSE ”
END AS 表名 ,
col.colorder AS 序号 ,
col.name AS 列名 ,
ISNULL(ep.[value], ”) AS 列说明 ,
t.name AS 数据类型 ,
col.length AS 长度 ,
ISNULL(COLUMNPROPERTY(col.id, col.name, ‘Scale’), 0) AS 小数位数 ,
CASE WHEN COLUMNPROPERTY(col.id, col.name, ‘IsIdentity’) = 1 THEN ‘√’
ELSE ”
END AS 标识 ,
CASE WHEN EXISTS ( SELECT 1
FROM dbo.sysindexes si
INNER JOIN dbo.sysindexkeys sik ON si.id = sik.id
AND si.indid = sik.indid
INNER JOIN dbo.syscolumns sc ON sc.id = sik.id
AND sc.colid = sik.colid
INNER JOIN dbo.sysobjects so ON so.name = si.name
AND so.xtype = ‘PK’
WHERE sc.id = col.id
AND sc.colid = col.colid ) THEN ‘√’
ELSE ”
END AS 主键 ,
CASE WHEN col.isnullable = 1 THEN ‘√’
ELSE ”
END AS 允许空 ,
ISNULL(comm.text, ”) AS 默认值
FROM dbo.syscolumns col
LEFT JOIN dbo.systypes t ON col.xtype = t.xusertype
INNER JOIN dbo.sysobjects obj ON col.id = obj.id
AND obj.xtype = ‘U’
AND obj.status >= 0
LEFT JOIN dbo.syscomments comm ON col.cdefault = comm.id
LEFT JOIN sys.extended_properties ep ON col.id = ep.major_id
AND col.colid = ep.minor_id
AND ep.name = ‘MS_Description’
LEFT JOIN sys.extended_properties epTwo ON obj.id = epTwo.major_id
AND epTwo.minor_id = 0
AND epTwo.name = ‘MS_Description’
WHERE obj.name = ‘userTab’–表名(点此修改)
ORDER BY col.colorder;