sqlserver 导出数据库表结构

最新推荐文章于 2025-02-24 00:08:52 发布

转载最新推荐文章于 2025-02-24 00:08:52 发布 · 255 阅读

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#SQL #导出数据库结构

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本文提供了一段SQL脚本，用于从SQL Server中查询表及其列的详细信息，包括表名、列名、数据类型等元数据，并标记了各字段是否为主键及是否允许为空。

SELECT
  表名称 = case when columns.colorder=1 then objects.name else '' end,
  表说明 = case when columns.colorder=1 then isnull(properties2.value,'') else '' end,
  列名称 = columns.name,
  列说明 = isnull(properties1.[value],''),
  类型 = types.name,
  长度 = COLUMNPROPERTY(columns.id,columns.name,'PRECISION'),
  是否是主键 = 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 = columns.id AND colid=columns.colid 
  ))) then '是' else '否' end,
  默认值=isnull(comments.text,''),
  是否允许为空=case when columns.isnullable=1 then '是'else '否' end
  FROM syscolumns columns
  left join systypes types on columns.xtype=types.xusertype 
  inner join sysobjects objects on columns.id=objects.id and objects.xtype='U' and objects.name<>'dtproperties' 
  left join syscomments comments on columns.cdefault=comments.id 
  left join sys.extended_properties properties1 on columns.id=properties1.major_id and columns.colid=properties1.minor_id  
  left join sys.extended_properties properties2 on objects.id=properties2.major_id and properties2.minor_id =0 
  --where d.name='' --查询指定表
  order by columns.id,columns.colorder

转载至： https://www.cnblogs.com/miaomiaoquanfa/p/6909835.html