mysql存储过程中使用变量批量修改数据_MySQL

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mysql存储过程中使用变量批量修改数据 BEGIN declare i int;#查找表的列数 declare column_name_temp varchar(100);##查找表的列名 DECLARE column_un_change varchar(100); DECLARE table_temp_name varchar(100); declare description varchar(100); declare code varchar(100); set column_un_change = 'OTHER_INCOME'; set description='description'; set code = 'code'; set table_temp_name = 'wy_notebill_detail2'; ######################查找表的列名存储到临时表################### drop table if EXISTS update_column; create temporary table update_column (a INT NOT NULL AUTO_INCREMENT,PRIMARY KEY (a)) TYPE = MyISAM SELECT column_name from information_schema.`COLUMNS` where table_name = table_temp_name and column_name not in(column_un_change,description,code) and data_type not in ('date','datetime'); #######################统计列数量#################### SELECT count(*) into i from update_column; SELECT i; loop1: WHILE i>2 DO ##########################给变量赋值列名####################### SELECT column_name into column_name_temp from update_column where a = i; SET i=i-1; #########################更新表的数据########################## set @sqls=concat('update ',table_temp_name ,' set ',column_name_temp,' = 0'); PREPARE stmt1 from @sqls; EXECUTE stmt1 ; END WHILE loop1; #SELECT * from wy_notebill_detail; END 作者 刘宗才 bitsCN.com