【原】获取SQLServer的最完整数据字典的SQL语句

 

获取SQLServer的最完整数据字典的SQL语句

 

其实网上已经流传了很多关于获取SQLServer的数据字典的版本，不过我相信这个应该是最全的了，本语句包括了表、字段、字段类型、字段长度、是否为空、是否递增字段、索引名称、索引的定位、索引类型、主键、外键等；通过合理的裁剪可以很方便的生成相应的数据字典。

 

SELECT sysobjects.name AS 表名称, --sysproperties.[value] AS 表说明, syscolumns.name AS 字段名称, --properties.[value] AS 字段说明, systypes.name AS 字段类型, syscolumns.length AS 字段长度, ISNULL(COLUMNPROPERTY(syscolumns.id, syscolumns.name,'Scale'), 0) AS 小数位数, CASE WHEN syscolumns.isnullable=0  THEN '' ELSE '√' END AS 是否为空, CASE WHEN syscomments.text IS NULL  THEN '' ELSE syscomments.text END AS 缺省值, CASE WHEN COLUMNPROPERTY(syscolumns.id, syscolumns.name, 'IsIdentity')= 1  THEN '√' ELSE '' END AS 递增字段, CASE WHEN sysindexes.name IS NULL  THEN '' ELSE sysindexes.name END AS 索引名称, CASE WHEN sysindexkeys.keyno IS NULL  THEN '' ELSE CONVERT(VARCHAR(10),sysindexkeys.keyno ) END AS 索引位置, CASE WHEN sysindexes.indid=1  THEN '聚集索引' WHEN sysindexes.indid>1 AND sysindexes.indid<>255  THEN '非聚集索引' WHEN sysindexes.indid IS NULL  THEN '' ELSE  '其他' END AS 索引类型, 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, CASE WHEN sysforeignkeys.constid IS NULL  THEN '' ELSE '√' END AS 外健 FROM syscolumns                             --数据表字段 INNER JOIN sysobjects                         --数据对象    ON sysobjects.id = syscolumns.id INNER JOIN systypes                          --数据类型    ON syscolumns.xtype = systypes.xtype LEFT OUTER JOIN sysproperties properties        --字段属性信息    ON syscolumns.id = properties.id   AND syscolumns.colid = properties.smallid LEFT OUTER JOIN sysproperties                 --表属性信息    ON sysobjects.id = sysproperties.id   AND sysproperties.smallid = 0 LEFT OUTER JOIN syscomments                 --注释信息    ON syscolumns.cdefault = syscomments.id LEFT OUTER JOIN sysindexkeys                 --索引中的键或列的信息    ON sysindexkeys.id = syscolumns.id   AND sysindexkeys.colid = syscolumns.colid LEFT OUTER JOIN sysindexes                   --数据库索引表    ON sysindexes.id = sysindexkeys.id   AND sysindexes.indid = sysindexkeys.indid LEFT OUTER JOIN sysforeignkeys    ON sysforeignkeys.fkeyid = syscolumns.id   AND sysforeignkeys.fkey = syscolumns.colid WHERE (sysobjects.xtype = 'U') order by sysobjects.id,syscolumns.colid

 

 

 

 

 

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