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  • 获取MS SQL库数据字典的经典SQL语句

            获取MS SQL库数据字典的经典SQL语句

    SELECT sysobjects.name AS [table], sysproperties.[value] AS 表说明,
          syscolumns.name AS field, properties.[value] AS 字段说明, systypes.name AS type,
          syscolumns.length, ISNULL(COLUMNPROPERTY(syscolumns.id, syscolumns.name,
          'Scale'), 0) AS 小数位数, syscolumns.isnullable AS isnull,
          CASE WHEN syscomments.text IS NULL
          THEN '' ELSE syscomments.text END AS [Default],
          CASE WHEN COLUMNPROPERTY(syscolumns.id, syscolumns.name, 'IsIdentity')
          = 1 THEN '√' ELSE '' END AS 标识, CASE WHEN EXISTS
              (SELECT 1
             FROM sysobjects
             WHERE xtype = 'PK' AND name IN
                       (SELECT name
                      FROM sysindexes
                      WHERE indid IN
                                (SELECT indid
                               FROM sysindexkeys
                               WHERE id = syscolumns.id AND colid = syscolumns.colid)))
          THEN '√' ELSE '' END AS 主键
    FROM syscolumns INNER JOIN
          sysobjects ON sysobjects.id = syscolumns.id INNER JOIN
          systypes ON syscolumns.xtype = systypes.xtype LEFT OUTER JOIN
          sysproperties properties ON syscolumns.id = properties.id AND
          syscolumns.colid = properties.smallid LEFT OUTER JOIN
          sysproperties ON sysobjects.id = sysproperties.id AND
          sysproperties.smallid = 0 LEFT OUTER JOIN
          syscomments ON syscolumns.cdefault = syscomments.id
    WHERE (sysobjects.xtype = 'U')

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  • 原文地址:https://www.cnblogs.com/cyz1980/p/412727.html
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