SqlServer 循环建表删除表更新表

Posted 2021-01-31 Green.Leaf

常用于分库分表

1、批量删除

declare @outter int
declare @inner int
declare @tablePrefix varchar(30)
declare @tableName varchar(36)
set @outter=1
set @inner=0
while (@outter<=12)
begin
 set @tablePrefix=‘BankPayOrder_‘+convert(varchar,@outter)+‘_‘
 while(@inner<=9)
 begin 
 set @tableName=@tablePrefix+convert(varchar,@inner)
 execute(‘delete from ‘+@tableName+‘‘)
 set @inner=@inner+1
 end
 set @inner=0
 set @outter=@outter+1
end 

 

2、批量建表

declare @outter int
declare @inner int
declare @tablePrefix varchar(30)
declare @tableName varchar(36)
set @outter=1
set @inner=0
while (@outter<=12)
begin
 set @tablePrefix=‘BankPayOrder_‘+convert(varchar,@outter)+‘_‘
 while(@inner<=9)
 begin 
 set @tableName=@tablePrefix+convert(varchar,@inner)
 execute(‘select * into ‘+@tableName+‘ from [BankPayOrderCommission_2018].[dbo].[BankPayOrder_1_0]‘)
 set @inner=@inner+1
 end
 set @inner=0
 set @outter=@outter+1
end