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数据库知识库/工具脚本/批量删除超前数据脚本（监测云）.md

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+--声明一个变量  
+declare @tbname as nvarchar(100);  
+--声明一个游标用来遍历查询到的结果  
+declare C_userID CURSOR for  
+select distinct TABLE_NAME from information_schema.COLUMNS  
+where TABLE_NAME like '%2020_SRC'  
+--打开游标  
+open C_userID;  
+--获取游标指向的数据  
+fetch next from C_userID into @tbname;  
+while @@FETCH_STATUS = 0  
+BEGIN  
+--执行具体的操作  
+--删除未来的数据  
+--DELETE  
+--FROM [HiMonitorDB].[dbo].[11350069_STC]  
+--WHERE aDatetime \>'2020-02-03'
+ 
+--create NONCLUSTERED INDEX 索引名称 ON 表名(字段名)  
+EXEC('delete from [safeMonitorSrc].[dbo].['+@tbname+'] where CollectTime\>GETDATE()')  
+--游标指向下一条数据  
+FETCH next from C_userID into @tbname;  
+END  
+--关闭游标  
+CLose C_userID  
+--释放游标  
+DEALLOCATE C_userID;
+
+begin tran  
+COMMIT  
+--声明一个变量  
+declare @tbname as nvarchar(100);  
+--声明一个游标用来遍历查询到的结果  
+declare C_userID CURSOR for  
+select distinct TABLE_NAME from information_schema.COLUMNS  
+where TABLE_NAME like '%2020_APP'  
+--打开游标  
+open C_userID;  
+--获取游标指向的数据  
+fetch next from C_userID into @tbname;  
+while @@FETCH_STATUS = 0  
+BEGIN  
+--执行具体的操作  
+--删除未来的数据  
+--DELETE  
+--FROM [HiMonitorDB].[dbo].[11350069_STC]  
+--WHERE aDatetime \>'2020-02-03'
+ 
+--create NONCLUSTERED INDEX 索引名称 ON 表名(字段名)  
+EXEC('delete from [safeMonitorAPP].[dbo].['+@tbname+'] where CollectTime\>GETDATE()')  
+--游标指向下一条数据  
+FETCH next from C_userID into @tbname;  
+END  
+--关闭游标  
+CLose C_userID  
+--释放游标  
+DEALLOCATE C_userID;