Mysql 儲存過程批量建表
CREATE DEFINER=`root`@`%` PROCEDURE `createTables`()
begin
declare i int;
declare suffix varchar(20);
declare createsql varchar(2048);
set i = 0;
while i < 100 do
set suffix = hex(i);
if length(suffix)<=1 then
set suffix = concat('0',hex(i));
end if;
set suffix = lower(suffix);
set createsql = concat('CREATE TABLE table_',suffix,'(
`id` int(11) NOT NULL AUTO_INCREMENT COMMENT \'自增主鍵\',
`uuid` varchar(32) NOT NULL COMMENT \'業務\',
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8');
set @createsql = createsql;
prepare stmt from @createsql;
execute stmt;
set i = i + 1;
end while;
end
裡面用到了幾個mysql自帶的函式：
1. hex(number): 十進位制轉成16進位制
2. length(string) : 字串長度
3. concat(str1,str2) : 字串拼接
4. lower(str) : 字串轉小寫