Int

摘要： 1 -- 字符串拼接 2 SET @this_year=YEAR(CURDATE()); 3 SET @str=CONCAT('select time from tb_history_',@this_year) 4 PREPARE stmt from @str; 5 EXECUTE stmt; 6 DEALLOCATE stmt; 7 8 -- 视图 9 DROP VIEW ... 阅读全文