获取M$ SQL Server用户表的字段信息

最新推荐文章于 2025-10-21 22:09:11 发布

转载最新推荐文章于 2025-10-21 22:09:11 发布 · 568 阅读

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#sql server #join #database #c

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本文提供了一段SQL脚本，用于查询指定数据库中所有用户表的字段信息，包括字段名称、数据类型、是否为主键等详细属性。

-- 获取M$ SQL Server用户表的字段信息
USE database1
SELECT
表名   = CASE a.colorder WHEN 1 THEN c.name ELSE '' END,
序     = a.colorder,
字段名 = a.name,
标识   = CASE COLUMNPROPERTY(a.id,a.name,'IsIdentity') WHEN 1 THEN '√' ELSE '' END,
主键   = CASE
    WHEN EXISTS (
      SELECT *
      FROM sysobjects
      WHERE xtype='PK' AND name IN (
        SELECT name
        FROM sysindexes
        WHERE id=a.id AND indid IN (
          SELECT indid
          FROM sysindexkeys
          WHERE id=a.id AND colid IN (
            SELECT colid
            FROM syscolumns
            WHERE id=a.id AND name=a.name
          )
        )
      )
    )
    THEN '√'
    ELSE ''
END,
类型   = b.name,
字节数 = a.length,
长度   = COLUMNPROPERTY(a.id,a.name,'Precision'),
小数   = CASE ISNULL(COLUMNPROPERTY(a.id,a.name,'Scale'),0)
    WHEN 0 THEN ''
    ELSE CAST(COLUMNPROPERTY(a.id,a.name,'Scale') AS VARCHAR)
END,
允许空 = CASE a.isnullable WHEN 1 THEN '√' ELSE '' END,
默认值 = ISNULL(d.[text],''),
说明   = ISNULL(e.[value],'')
FROM syscolumns a
LEFT JOIN systypes      b ON a.xtype=b.xusertype
INNER JOIN sysobjects    c ON a.id=c.id AND c.xtype='U' AND c.name<>'dtproperties'
LEFT JOIN syscomments   d ON a.cdefault=d.id
LEFT JOIN sysproperties e ON a.id=e.id AND a.colid=e.smallid
ORDER BY c.name, a.colorder