chill_notes/OneNote/数据库知识库/工具脚本/批量删除超前数据脚本（监测云）.md

--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;