rollback transaction

Http://skeletoncoder.blogspot.com/2006/10/jdbc-tutorials-commit-or-rollback.htmlJDBC tutorials:commit or Rollback transaction in finally blockIn the most of the JDBC books, the transaction management idiom, which is followed are, after executing the

Use transaction rollback to debug SQL statements to avoid the impact of incorrect operations on the database. Mark.   Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Begin  

SqlConnection con =NewSqlConnection (CONNECTIONDB.CONSTR);//Get database connectionCon. Open ();//Open ConnectionSqlTransaction Sqltra = con. BeginTransaction ();//Start a transactionSqlCommand cmd =NewSqlCommand ();//instantiation ofCmd. Connection

1. Spring MVC Configuration Exception thing rollback mechanism...... Omitted2, in special cases, the use of manual things rollback, as followsNote: Manual thing rollback is simple, but does not conform to spring's non-intrusive nature and makes the

server| Transaction Processing Transaction definition: A transaction is a single unit of work. If a transaction succeeds, all data changes made in that transaction are commit to become a permanent part of the database. If the transaction encounters

  Transaction definition: A transaction is a single unit of work. If a transaction succeeds, all data changes made in the transaction will be committed and become a permanent component of the database. If the transaction encounters an error and

Transaction definition:A transaction is a single unit of work. If a transaction succeeds, all data changes made in the transaction areCommits and becomes a permanent part of the database. If the transaction encounters an error and must be canceled

first, the basic concept The SQL Server database engine ignores the commit of the internal transaction. The internal transaction is committed or rolled back according to the action taken at the end of the most external transaction. If an external

1.1.1 Summary I'm sure you're familiar with SQL Transcation. However, it ensures the data consistency and security of the database, especially when performing additions and deletions to the data, if an exception and error occurs, it triggers a

All global variables in SQL Server are prefixed with two @ symbols--[email protected] @error The error number of the last T-SQL error (the error number for which the constraint was to be violated)Insert intoSubjectValues('Test Engineer')--violation

 Error Handling of nested transactions and transaction retention points     For nested transactions.1. Start external transactions, start internal transactions, and try catchInternal error: if an internal transaction error occurs, internal and

Create a table: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Set Ansi_nulls On Go Set Quoted_identifier On Go Create   Table   [ DBO ] . [ T1 ] (

In spring's configuration file, if the data source's Defaultautocommit is set to True, the transaction is not rolled back if the exception is caught by itself in the method, and the transaction rolls back if the exception is not caught by itself, as

In the development of the problems encountered in the first few days, during the debugging process found that the configuration service this transaction does not work layer, after the update database throws an exception or success, the transaction

BEGIN TRANSACTIONMarks the starting point for an explicit local transaction. BEGIN TRANSACTION The @ @TRANCOUNT by 1 increments.BEGIN TRANSACTION represents a point where data referenced by a connection is logically and physically consistent at that

1. What is a transaction: a transaction is an indivisible working logical unit that is used as the smallest control unit when performing concurrent operations on a database system. All of the database operations commands he contains are either

Beginners of software development are not very familiar with stored procedures and transactions. Today, we will give you a simple example of a transaction, so that you can understand it first. Then we will explain the stored procedure to you. Start

First create a data table in the test library TestDB: Use [TestDB]GO/** * * object: Table [dbo]. [Person] * * * * **/SETAnsi_nulls onGOSETQuoted_identifier onGOCREATE TABLE [dbo].[ Person]( [PersonId] [nchar]( -) not NULL, [PersonName] [nchar](

The table structure is as follows: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->USE [TestDB] GO /***** Object: Table [dbo]. [Person] script Date: 11/23/2008 13:37:48 ******/ SET ANSI_NULLS

Python3 connecting MySQLNOTE: the cursor () method is used to create a cursor object that can be used to manipulate additions and deletions.Conn is used to commit () or rollback () after it is finished.Finally remember Cursor.close (), Conn.close ().