mysql中修改表的默认编码和表中字段的编码 |
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ALTER TABLE `table` DEFAULT CHARACTER SET utf8; 但是虽然修改了表的编码格式,但是字段的编码格式并没有修改过来,没有什么卵用
又发现一条语句,作用是修改字段的编码格式 ALTER TABLE `tablename` CHANGE `字段名1` `字段名2` VARCHAR(36) CHARACTER SET utf8 NOT NULL;最后找到这么一条语句 alter table `tablename` convert to character set utf8;它可以修改一张表的所有字段的编码格式,顿时方便多了 Ps :延伸一下,修改mysql中所有表,所有字段编码,需要用到存储过程 转换表字段编码的sql语句为:alter table `tableName` convert to character set utf8' CREATE PROCEDURE `pr_convert_dbtab_utf8`(IN dbName varchar(100)) BEGIN declare stop int default 0; declare tabCount int default 0; declare strSql varchar(1000); declare name varchar(100); declare cur CURSOR FOR select table_name from information_schema.tables where table_schema=dbName; declare CONTINUE HANDLER FOR SQLSTATE '02000' SET stop = null; OPEN cur; FETCH cur INTO name; WHILE ( stop is not null) DO set tabCount=tabCount+1; set strSql = concat('alter table `',name,'` convert to character set utf8'); set @sql1 = strSql; prepare stmt_p from @sql1; execute stmt_p; FETCH cur INTO name; END WHILE; CLOSE cur; SELECT concat('table: ', tabCount); END;输入调用存储过程的命令,参数为需要转换的数据库名 mysql> call pr_convert_dbtab_utf8('jiradb'); +-----------------------------+ | concat('table: ', tabCount) | +-----------------------------+ | table: 245 | +-----------------------------+ 1 row in set Query OK, 0 rows affected mysql> |
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