以编程方式创建用于删除和创建具有依赖顺序的数据库视图的脚本

Posted 2023-02-26

【中文标题】以编程方式创建用于删除和创建具有依赖顺序的数据库视图的脚本

【英文标题】：Creating A Script For Dropping and Creating Views of a Database With Dependency Order, Programatically

【发布时间】：2012-11-14 13:08:50

【问题描述】：

我只看到this topic。 这与我的问题非常相似。 但我不想使用任何第三方来创建脚本。 我想以依赖顺序和编程方式创建删除和创建数据库视图的脚本。 我怎么能做这种事？

【问题讨论】：

首先，在定义视图的依赖顺序时要非常精确 - 然后在数据字典中查询这些规则，然后从您选择的语言生成脚本。然后发布您尝试过的内容以及无效的内容。

谢谢，我只想照你说的做，你能解释一下吗，我刚试过ssms，scriptio和其他微软工具，就像ssms生成脚本一样，我不记得名字了。您或其他人能否详细描述您所说的内容，谢谢。

我找到了这样的方法来创建命令，但它没有依赖关系：

SELECT 'DROP VIEW ' + v.name As DropCmd, RTRIM(ISNULL(smv.definition, ssmv.definition) ) AS CreateCmd FROM sys AS v LEFT OUTER JOIN sys.sql_modules AS smv ON smv。 object_id = v.object_id LEFT OUTER JOIN sys.system_sql_modules AS ssmv ON ssmv.object_id = v.object_id WHERE v.type = 'V' AND SCHEMA_NAME(v.schema_id) = N'dbo' ORDER BY v.name

【参考方案1】：

最后我发现我的答案是这样的， 但请记住，这仅适用于具有一个嵌套级别的视图。不多 ！ ：

SELECT MIN(Row) AS Row, CreateCmd FROM ( 
SELECT Row_Number() OVER (ORDER BY S.Row) As Row, S.CreateCmd FROM ( 
SELECT 0 AS Row, RTRIM(ISNULL(smv.definition, ssmv.definition)) AS CreateCmd 
FROM sys.all_objects AS v 
LEFT OUTER JOIN sys.sql_modules AS smv ON smv.object_id = v.object_id 
LEFT OUTER JOIN sys.system_sql_modules AS ssmv ON ssmv.object_id = v.object_id 
INNER JOIN (SELECT object_id, referenced_major_id FROM sys.sql_dependencies 
GROUP BY object_id, referenced_major_id) AS a ON v.object_id = a.referenced_major_id
WHERE (v.type = 'V' OR v.type = 'P' OR v.type = 'IF' OR v.type = 'TF' OR v.type =    'FN') 
AND SCHEMA_NAME(v.schema_id) = N'dbo' AND is_ms_shipped <> 1 
AND smv.execute_as_principal_id IS NULL AND ssmv.execute_as_principal_id IS NULL 
GROUP BY v.Name, smv.definition, ssmv.definition 
UNION ALL 
SELECT 1 AS Row, RTRIM(ISNULL(smv.definition, ssmv.definition)) AS CreateCmd 
FROM sys.all_objects AS v 
LEFT OUTER JOIN sys.sql_modules AS smv ON smv.object_id = v.object_id 
LEFT OUTER JOIN sys.system_sql_modules AS ssmv ON ssmv.object_id = v.object_id 
INNER JOIN (SELECT object_id, referenced_major_id FROM sys.sql_dependencies 
GROUP BY object_id, referenced_major_id) AS a ON v.object_id = a.object_id
WHERE (v.type = 'V' OR v.type = 'P' OR v.type = 'IF' OR v.type = 'TF' OR v.type = 'FN') 
AND SCHEMA_NAME(v.schema_id) = N'dbo' AND is_ms_shipped <> 1 
AND smv.execute_as_principal_id IS NULL AND ssmv.execute_as_principal_id IS NULL 
GROUP BY v.Name, smv.definition, ssmv.definition 
) S GROUP BY S.Row, CreateCmd 
) D GROUP BY CreateCmd ORDER BY Row