如果所有操作成功完 成,事务则提交(commit),其修改将作用于所有其他数据库进程。如果一个操作失败,则事 务将回滚(roll back),该事务所有操作的影响都将取消。 首先,您的MySQL是InnoDB或BDB引擎的一种,一般来说,你安装了AppServ的集成 包, 你选择InnoDB的引擎的数据库即可。 如果你建立的表不是InnoDB, 可以在ph...
在上面的示例中,我们创建了一个 MySQLi 连接,并使用begin_transaction()开始事务。在进行两个 SQL 插入操作后,我们通过commit()提交事务。如果在执行 SQL 查询时出现错误,捕获异常后调用rollback()将所有操作回滚。 事务操作的流程 在理解了基本用法后,我们可以通过甘特图来展示事务操作的弹性和顺序: 2023-10-012023...
("INSERT INTO users (name, email) VALUES ('John Doe', 'john@example.com')"); $pdo->exec("UPDATE accounts SET balance = balance - 100 WHERE user_id = 1"); // 提交事务 $pdo->commit(); } catch (PDOException $e) { // 回滚事务 $pdo->rollBack(); echo "Error: " . $e->...
mysql_commit() mysql_connect() mysql_create_db() mysql_data_seek() mysql_debug() mysql_drop_db() mysql_dump_debug_info() mysql_eof() mysql_errno() mysql_error() mysql_escape_string() mysql_fetch_field() mysql_fetch_field_direct() mysql_fetch_fields() mysql_fetc...
commit; how do i trace which query has consumed time or other way, why commit is taking 2 seconds of time. Also, FYI, the queries in the transcation set before the commit operation are not visible in slow query log. Need your expert advice please. ...
ER_ERROR_DURING_COMMIT 1180 ER_ERROR_DURING_ROLLBACK 1181 ER_ERROR_DURING_FLUSH_LOGS 1182 ER_ERROR_DURING_CHECKPOINT 1183 ER_NEW_ABORTING_CONNECTION 1184 ER_DUMP_NOT_IMPLEMENTED 1185 ER_FLUSH_MASTER_BINLOG_CLOSED 1186 ER_INDEX_REBUILD 1187 ...
5.4.53 mysql_query() intmysql_query(MYSQL*mysql,constchar*stmt_str) Description Executes the SQL statement pointed to by the null-terminated stringstmt_str. Normally, the string must consist of a single SQL statement without a terminating semicolon (;) or\g. If multiple-statement execution ...
---事件体--- 12、status var:26个字节,以KV对的形式保存起来的一些了由SET命令设置的上下文信息。 13、schema:3字节,yzs,当前选择的databases 14、00,默认 15、query:query的文本格式,里面存储的可能是BEGIN、COMMIT字符串或原生的SQL等
33if($flag&&$result&&$conn->affected_rows){ 34$conn->commit();//提交 mysql指令: commit; 35echo'转账成功'; 36}else{ 37$conn->rollback();//事物回滚 mysql指令:rollback; 38echo'转账失败,请联系发卡行'; 39} 40 41$conn->autocommit(1); 42$conn->close(); 43 44?>...
if($orders && $orderparts) { mysqli_query($con,"COMMIT"); } else { mysqli_query($con,"ROLLBACK"); } 222) In sproc, I can use a transaction block. I simply upload from Java all the relevant data and stuff them into the param list. ...