PHP-MySQL-如何安全地增加 MySQL 整数字段?

2022-01-06 00:00:00 counter transactions php mysql

我想使用 php 和 mysql 安全地增加一个字段值.

I want to increment a field value safely using php and mysql.

  1. 我必须使用什么类型的表/字段?

  1. What type of table/field must I use?

是否有我必须使用的最低 MySQL 版本?

Is there a minimum version of MySQL I must use?

MySQL 安全事务的 sql 代码是什么?

What's the sql code for this, safe transaction for MySQL?

推荐答案

我假设您指的是存储引擎的表"类型.任何支持突变的东西(即不是存档"或黑洞")

By what type of "table" I assume you mean storage engine. Anything that supports mutations (i.e. not "archive" or "black hole")

任何数字字段都可以(tinyint、int、float 等).也就是说,没有特殊的 PHP 代码,只有用于增加所需字段的 SQL:

Any numeric field will do (tinyint, int, float, etc). That said, there's no special PHP code, just the SQL for incrementing the desired field:

UPDATE table SET field = field + 1 WHERE [...]

如果你想要一个事务,那就把上面的查询打包成一个事务.至于 MySQL 版本,我同意 @hsz - 尽可能使用最新版本.

If you want a transaction, then pack the above query into a transaction. As for MySQL version, I agree with @hsz - use the most current version possible.

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