我认为这是您需要的（存储过程）：Mysql将列字符串拆分为行
DELIMITER $$DROp PROCEDURE IF EXISTS explode_table $$CREATE PROCEDURE explode_table(bound VARCHAr(255))BEGINDECLARE id INT DEFAULT 0;DECLARE value TEXT;DECLARE occurance INT DEFAULT 0;DECLARE i INT DEFAULT 0;DECLARE splitted_value INT;DECLARE done INT DEFAULT 0;DECLARE cur1 CURSOR FOR SELECT table1.id, table1.value FROM table1 WHERe table1.value != '';DECLARE ConTINUE HANDLER FOR NOT FOUND SET done = 1;DROp TEMPORARY TABLE IF EXISTS table2;CREATE TEMPORARY TABLE table2(`id` INT NOT NULL,`value` VARCHAr(255) NOT NULL) ENGINE=Memory;OPEN cur1; read_loop: LOOP FETCH cur1 INTO id, value; IF done THEN LEAVE read_loop; END IF; SET occurance = (SELECT LENGTH(value) - LENGTH(REPLACE(value, bound, '')) +1); SET i=1; WHILE i <= occurance DO SET splitted_value = (SELECT REPLACE(SUBSTRINg(SUBSTRING_INDEX(value, bound, i), LENGTH(SUBSTRING_INDEX(value, bound, i - 1)) + 1), ',', '')); INSERT INTO table2 VALUES (id, splitted_value); SET i = i + 1; END WHILE; END LOOP; SELECT * FROM table2; CLOSE cur1; END; $$
