这只是一个简单的例子,有点矫枉过正,你可能需要在随机部分有 1 行。但这就是我目前所拥有的一切,必须出去。
create schema so_gibberish; -- creates database
use so_gibberish; -- use it
-- drop table random; -- during debug
create table random
( id int auto_increment primary key,
question varchar(50) not null,
category int not null,
randomOrder int not null,
key (category)
);
创建一个存储过程以插入随机问题(以 ? 结尾)
调用时一次创建 300 个
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DELIMITER $$
drop procedure if exists createRandomQuestions$$
-- 17 categories of questions randomly created. yes random word questions and categories.
create procedure createRandomQuestions()
BEGIN
set @i=1;
WHILE @i<=300 DO
insert random (question,category) values ('xxx',1);
SELECT @lid:=LAST_INSERT_ID(); -- use id to seed, next 8 guaranteed different i think
-- programmer should come up with adequate random seed on their own
-- this is WAY overkill but it was what I had at the moment to show you
UPDATE random SET question=concat(
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@lid)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@seed)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@seed)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@seed)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@seed)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@seed)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@seed)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed)*36+1, 1), ' ?'
), category=floor(rand()*17+1),randomOrder=0
WHERE id=@lid;
set @i=@i+1;
END WHILE;
END;
$$
DELIMITER ;
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叫它:
call createRandomQuestions();
清理:
drop schema so_gibberish;
祝你好运。