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  • 存储过程批量插入,添加字段

    CREATE DEFINER=`root`@`%` PROCEDURE `batchInsert`(IN loop_times INT)
    BEGIN  
         DECLARE var INT;   
         SET var = 0;  
         set @exeSql=concat("insert into cdb_dynamic (typeId,addTime,userId) VALUES (1,1470540371,1)");  
                
         WHILE var < loop_times DO  
               set @exeSql=concat(@exeSql,", (1,1470540371,1)");  
               SET var = var + 1;  
         END WHILE;  
         prepare stmt from @exeSql;  
         EXECUTE stmt;  
         deallocate prepare stmt;
         END;
    CREATE DEFINER=`root`@`%` PROCEDURE `NewProcedure`()
    BEGIN
    
    
    DECLARE Done INT DEFAULT 0;
    
         DECLARE ShizuName VARCHAR(300);
         /* 声明游标 */
         DECLARE rs CURSOR FOR  select table_name as tn from information_schema.tables where table_schema='stats' and table_name like  'cdb_click%';
         /* 异常处理 */
          DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET Done = 1;
    
          /* 打开游标 */
          OPEN rs;
    
          /* 逐个取出当前记录LingQi字段的值,需要进行最大值的判断 */
           FETCH NEXT FROM rs INTO ShizuName;
          /* 遍历数据表 */
          REPEAT
                IF NOT Done THEN
                       -- insert into test (name) values  (ShizuName);
           
                       SET @STMT :=CONCAT("alter table `",ShizuName,"` add column addTime int(10) unsigned not null default 0;");   
           
                        PREPARE STMT FROM @STMT;   
                        EXECUTE STMT;   
                        
                        
                         SET @STMT :=CONCAT("alter table `",ShizuName,"` add column isDel tinyint(3) unsigned not null default 0;");   
           
                        PREPARE STMT FROM @STMT;   
                        EXECUTE STMT;   
                       
                      /*UPDATE socialrelation SET LingQi = LingQi + 60 WHERE NodeName = ShizuName;*/
                END IF;
    
           FETCH NEXT FROM rs INTO ShizuName;
    
          UNTIL Done END REPEAT;
    
          /* 关闭游标 */
          CLOSE rs;
    
    END;
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  • 原文地址:https://www.cnblogs.com/zenghansen/p/5976700.html
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