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数据库/循环批量删除数据库表.md

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+--创建临时表
+```sql
+create table #Man(
+```
+id int identity(1,1),
+tbName nvarchar(50)
+)   --往临时表插入数据
+```sql
+insert into #Man
+select name from sys.tables
+where create_date<='2018-03-10 15:36:35.687' and name not in ('DeviceNetState','EphInfo','FilterStatistic','UserInfo','AlmInfo')
+```
+order by create_date desc
+
+--确认
+```sql
+select * from #Man
+
+```
+commit
+rollback
+begin tran
+
+
+--定义循环变量
+```sql
+declare @i int
+set @i = 1
+declare @count int
+select @count = count(*) from #Man
+
+```
+--print @count
+
+```sql
+declare @str nvarchar(500)
+declare @tb nvarchar(50)
+
+```
+while(@i <= @count) begin
+
+```sql
+select @tb = isnull(tbName, '') from #Man where id = @i
+```
+--循环执行语句
+```sql
+set @str = 'drop table [' + @tb+ ']'
+```
+exec(@str)
+
+```sql
+set @str = ''
+set @i = @i + 1
+```
+end