mysql数据库修改数据库编码,字段编码与表编码(转)
1.修改数据库的编码
将数据库(test)的编码方式修改为utf8,如:
ALTER DATABASE `test` DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;
2.修改表的编码
将表(test)的编码方式修改为utf8,如:
ALTER TABLE `test` DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;
3.修改字段的编码
将表(test)中字段(name)的编码方式修改为utf8,如:
ALTER TABLE `test` CHANGE `name` `name` VARCHAR( 10 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;
将数据库(test)的编码方式修改为utf8,如:
ALTER DATABASE `test` DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;
2.修改表的编码
将表(test)的编码方式修改为utf8,如:
ALTER TABLE `test` DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;
3.修改字段的编码
将表(test)中字段(name)的编码方式修改为utf8,如:
ALTER TABLE `test` CHANGE `name` `name` VARCHAR( 10 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;
在1.1.3中,pe_hostip中的字段为gbk,要改成utf-8:
ALTER TABLE `pe_hostip` CHANGE `hostname` `hostname` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL;
ALTER TABLE `pe_hostip` CHANGE `hostip` `hostip` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL;
ALTER TABLE `pe_hostip` CHANGE `contact` `contact` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL;
ALTER TABLE `pe_hostip` CHANGE `telephone` `telephone` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL;
ALTER TABLE `pe_hostip` CHANGE `address` `address` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL;
ALTER TABLE `pe_hostip` CHANGE `memo` `memo` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL;
ALTER TABLE `pe_hostip` CHANGE `hostip` `hostip` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL;
ALTER TABLE `pe_hostip` CHANGE `contact` `contact` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL;
ALTER TABLE `pe_hostip` CHANGE `telephone` `telephone` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL;
ALTER TABLE `pe_hostip` CHANGE `address` `address` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL;
ALTER TABLE `pe_hostip` CHANGE `memo` `memo` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL;