Question

所以我的问题是我是否应该使用PDO或mysqli。由于来自php PDO page的以下警告，我担心使用PDO。

警告注意：某些MySQL表类型（存储引擎）不支持事务。使用不支持事务的表类型编写事务数据库代码时，MySQL将假装成功启动了事务。此外，发出的任何DDL查询都将隐式提交任何挂起的事务。

将来会出现什么样的问题？
如果我只使用mysqli会更好吗？（不确定是否有相同的问题）

Answer 1

我认为警告是因为所有类型的mysql storage engines都不支持事务。不支持事务的引擎将立即自动提交数据。因此，请检查引擎列表及其工作差异。

mysql> SHOW ENGINES;
+------------+---------+----------------------------------------------------------------+--------------+------+------------+
| Engine     | Support | Comment                                                        | Transactions | XA   | Savepoints |
+------------+---------+----------------------------------------------------------------+--------------+------+------------+
| InnoDB     | YES     | Supports transactions, row-level locking, and foreign keys     | YES          | YES  | YES        |
| MRG_MYISAM | YES     | Collection of identical MyISAM tables                          | NO           | NO   | NO         |
| BLACKHOLE  | YES     | /dev/null storage engine (anything you write to it disappears) | NO           | NO   | NO         |
| CSV        | YES     | CSV storage engine                                             | NO           | NO   | NO         |
| MEMORY     | YES     | Hash based, stored in memory, useful for temporary tables      | NO           | NO   | NO         |
| FEDERATED  | NO      | Federated MySQL storage engine                                 | NULL         | NULL | NULL       |
| ARCHIVE    | YES     | Archive storage engine                                         | NO           | NO   | NO         |
| MyISAM     | DEFAULT | Default engine as of MySQL 3.23 with great performance         | NO           | NO   | NO         |
+------------+---------+----------------------------------------------------------------+--------------+------+------------+

PDO事务代码警告vs mysqli

1 个答案: