commit vs rollback

Transferred from Http://blog.163.com/[email protected]/blog/static/1394892972011611111559962/#userconsent #1. Explicit DB CommitThe explicit DB commit does not have a corresponding ABAP statement to execute the DB commit, which is done by the usual

Reprinted from: http://blog.csdn.net/leshami/article/details/5731158One, rollback (ROLLBACK) and undo (undo)Rollback and roll forward are important means of ensuring that the data in an Oracle database is in a consistent state. --Before the 9i

Original Sticker Address: https://www.oschina.net/translate/showdown-mysql-8-vs-postgresql-10?lang=chs&page=2#English Original address: http://rachbelaid.com/introduction-to-postgres-physical-storage/Now that MySQL 8 and PostgreSQL 10 have been

Characteristics Mysql PostgreSQL Instance Launch the instance by executing the MySQL command (MYSQLD). One instance can manage one or more databases. A single server can run multiple mysqld instances. An instance manager

Http://bbs.chinaunix.net/thread-1688208-1-1.html Characteristics Mysql PostgreSQL Instance Launch the instance by executing the MySQL command (MYSQLD). One instance can manage one or more databases. A

msdn link: http://msdn.microsoft.com/zh-cn/library/w97s6fw4 (V = vs.80). aspx Class program {static void main (string [] ARGs) {try {using (transactionscope = new transactionscope () {customenlistment cstomenlistment = new customenlistment ();

Characteristics Mysql PostgreSQL Instance Launch the instance by executing the MySQL command (MYSQLD). One instance can manage one or more databases. A single server can run multiple mysqld instances. An instance

November 23, the new Torch Network middleware technical expert Tuo teacher in the dba+ Community Middleware user Group has a theme for "open source VS business, message middleware You do not know of those things," the online share. Small series

With statement Context Manager Contextlib Module Reference reference With statement A new statement that appears in Python2.6 with the WITH statement. Before Python2.6, to properly handle resource management involving

Multi-version concurrency control technology is used by many database or storage engines, such as Oracle, ms SQL Server 2005 +, PostgreSQL, Firebird, InnoDB, Falcon, pbxt, Maria and so on. The new database storage engine uses multi-version instead