select @n=1
insert #temp(tablename) SELECT distinct sobjects.name
FROM sysobjects sobjects
WHERE sobjects.xtype = 'U'

select @rows = @@rowcount
while @n <= @rows
begin

    declare @tablename nvarchar(50)
    select @tablename = (select tablename from #temp where id = @n)
    --允許將顯式值插入表的標識列中 ON-允許  OFF-不允許
    --exec ('set identity_insert '+@tablename+' ON')--打開
    exec ('TRUNCATE TABLE  '+@tablename)
    print(@tablename)
    select @n = @n + 1
end
go
 

SQLServer 清空某個庫所有表