如何为MySQL中的特定表自动增加2 [英] How to auto increment by 2 for a particular table in mysql
问题描述
我有2个表order_retailer和order_customer
I have 2 tables order_retailer and order_customer
它们都具有自动递增的主键order_id
they both have auto incremented primary key order_id
要在整个系统中保持唯一的订单ID，我希望order_retailer仅将ID作为偶数编号，对于order_customer，这些ID将为奇数.为此，我必须将autoincrement的增量值设置为2.是否可以在mysql中以表格方式设置它.
To keep an order id unique in the whole system I want order_retailer to have id as even numbers only and for order_customer the ids will be odd. For this I have to set the autoincrement's increment value to 2. is it possible to set it table wise in mysql.
我不想要php解决方案.请让我知道是否有一个命令/查询来将垂直表的自动增量移位设置为2. 另外我也不想更改服务器变量auto_increment_increment或auto_increment_offset或任何其他服务器变量
I don't want a php solution. please let me know if there is a command/query to set the auto increment shift to 2 for a perticular table. Also I don't want to change the server variables auto_increment_increment or auto_increment_offset or any other server variable
推荐答案
否，无法在表格上进行设置.
No it is not possible to set it table wise.
Mysql具有2个变量auto_increment_increment和auto_increment_offset，并且默认情况下，这两个变量的值均为1.如果您更改任何值，将具有全局作用.
Mysql has 2 variable auto_increment_increment and auto_increment_offset and values of both these variables are 1 by default. If you change any of the value it will have global effect.
要解决您的问题，请创建一个存储过程，该存储过程将根据需要具有偶数id的需求来实现.
To solve your problem create a stored procedure which will according to needs of having even id.
希望这会有所帮助
这篇关于如何为MySQL中的特定表自动增加2的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
