10 recommended articles about begintransaction

Transaction is a very important function in operating the database. It allows you to schedule one or a series of SQL statements and then execute them together. During the execution process, if one of them fails to execute, you can Roll back all changed operations. If executed successfully, this series of operations will be permanently effective. Transactions can solve the problem of out-of-synchronization when operating the database. At the same time, when executing large amounts of data through transactions, execute The efficiency can be improved a lot. The function of transaction processing can also be realized in PDO 1: Open the transaction: beginTransaction() method The beginTransaction() method will turn off the automatic submission (autocommit) mode and will not resume until the transaction is submitted or rolled back 2: Submit things: commit() method The commit() method completes the submission operation of things and returns true if successful, otherwise it returns false. 3: Rollback of things: rollBack() method The rollBack() method performs the rollback operation of things. For example: $dbm

1.Recommended 10 articles about php begintransaction transaction

Introduction: Transaction is a very important function in operating a database. It allows you to schedule one or a series of SQL statements and then execute them together. During the execution, if any of them If an execution fails, all changed operations can be rolled back. If the execution is successful, this series of operations will be permanently effective. Transactions solve the problem of out-of-synchronization when operating the database. At the same time, transactions can be used to perform large-scale operations. When the amount of data increases, the execution efficiency can be improved a lot. The same can be done in PDO...

2.Transaction processing in PDO

Introduction:: Transaction processing in PDO: Transaction is a very important function in operating the database. It allows you to schedule one or a series of SQL statements, and then execute them together, and during the execution During the process, if one of the execution fails, all changed operations can be rolled back. If the execution is successful, then this series of operations will be permanently effective. Transactions well solve the problem of out-of-synchronization when operating the database. At the same time, when executing large amounts of data through transactions, the execution efficiency can be improved a lot. Things can also be implemented in PDO

3.pdftowordconverter PHP PDO function library detailed explanation

Introduction: pdftowordconverter: pdftowordconverter Detailed explanation of PHP PDO function library: At present, there is a long way to go to implement the "database abstraction layer". Using a "database access abstraction layer" such as PDO ” is a good choice. PDO contains three predefined classes. PDO contains three predefined classes, which are PDO, PDOStatement and PDOException. 1. PDOPDO->beginTransaction() - indicates the starting point of rollback PDO->commit() - indicates the end point of rollback, and executes SQLPDO->__c

4.blendfunction PHP PDO Function Library (PDO Functions) Page 1/2

Introduction: blendfunction:blendfunction PHP PDO Function Library (PDO Functions) Page 1/2 : PDO is more efficient compared to ADODB and MDB2. At present, there is a long way to go to implement the "database abstraction layer". Using a "database access abstraction layer" such as PDO is a good choice. PDO->beginTransaction() — Indicates the starting point of the rollback PDO->commit() — Indicates the end point of the rollback and executes SQL PDO->__construct() — Creates an instance of PDO linked to the database PDO->er

5.php SQLite Study Notes and Frequently Asked Questions Analysis Page 1/2_PHP Tutorial

Introduction: PHP SQLite study notes and FAQ analysis page 1/2. Until you learn! Find information before learning SQLite's sql ATTACHDATABASE BEGINTRANSACTION comment COMMITTRANSACTION COPY CREATEINDEX CREATETABLE CREATETRIGGER CREATEVIEW DELETE DETACHDATABASE DR

#6.PHP pdo transaction rollback code example_PHP tutorial

Introduction: PHP pdo transaction rollback code example. PHP pdo transaction rollback code example $this-beginTransaction(); $this-exec('update people set age=2'); //$step1 = mysql tutorial_error();//In your class, change to If there is an error in executing sql, get

7.PHP pdo transactions cannot be rolled back

Introduction: PHP pdo transactions cannot be rolled back public function submit(){ try { $this ->beginTransaction(); $this->exec('update people set age=2'); $this->exec('INSERT INTO course (course,num) VALUES (

8.Can I use preprocessing in pdo transaction processing?

Introduction: Can I use preprocessing in pdo transaction processing? Can preprocessing be used in pdo transaction processing? For example, after the following code exception, can the transaction be rolled back? try{ $pdo->beginTransaction(); $sql = 'INSERT ...'; $pdo_pre = $pdo->prepare($sql); $pd

##9.Zend Framework transaction processing related issues

Introduction: Zend Framework transaction processing issues are officially given An example is as follows: beginTransaction(); //Try database operations. // If successful, commit the operation; // If, rol

10.php SQLite study notes and FAQ analysis page 1/2

Introduction: PHP SQLite study notes and FAQ analysis page 1/2. Until you learn! Find information before learning SQLite sql ATTACHDATABASE BEGINTRANSACTION comment COMMITTRANSACTION COPY CREATEINDEX CREATETABLE CREATETRIGGER CREATEVIEW DELETE DETACHDATABASE DR

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