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Recently, according to the company's plan, we need to incrementally fetch data from some tables in the previous SQL Server database to the ORACLE database, and decide to use the newly added CDC (Change Data Capture) function in sqlserver2008.

This is a real oracle (ORA-19815 solution) case, hope to help everyone. Today, the platform of a friend company experienced slow login and slow data query. In addition, spotlight was used to monitor oracle This is a real oracle (ORA-19815 solution)

After reading the master-slave replication of mysql written in the old boy's blog oldboy. blog.51cto. com2561421339399, I recorded the test process as follows, including scripts, troubleshooting, and illustration. I have read the old boy's blog

The installation of the OracleRAC database is more complex than that of a standalone database, because the entire installation process involves network, operating system, and storage. Improper configuration of one link may cause installation failure.

This article is original and reprinted. Please keep the following link information: www.magedu.commageedu.blog.51cto.com 1. installation 1. Introduction Xtrabackup is a mysql database backup job provided by percona. This article is original,

Mysql innodb supports storing tables and indexes on bare devices. The storage I/O wait problem has always been the key to affecting database performance. Bare devices do not need to be processed by the file system I/O, therefore, the performance has

What should I do if one line of code cannot provide the functions you want? What should I do if one line of code cannot provide the functions you want? The answer is to create a database class. Through the second encapsulation of functions,

There are two types of repeated data: one is a completely repeated record, that is, the values of all fields are the same; the other is a record with some field values repeated. 1. Deleting completely duplicated records data is usually caused by the

The Comparison Between POSIX and Perl-Compatible Regular Expressions (preg_match, preg_replace, ereg, and ereg_replace). For more information, see. The Comparison Between POSIX and Perl-Compatible Regular Expressions (preg_match, preg_replace, ereg,

Recently, I have performed Database Synchronization and backup. After I subscribe to the primary database through [copy] provided by SQLService, the subscriber (slave database) cannot determine the subscribe to the slave database because of an

In my previous article "the recently developed website anti-IP attack code, super useful", I wrote a complete solution to prevent malicious IP attacks on the network. It worked well for a month. In my previous article "the recently developed website

The customer asked a question today that the cell line of the exported excel file does not have a line break. The solution is found by searching for resources. The customer asked a question today that the cell line of the exported excel file does

In many cases, we need web pages to have the automatic jump function. For example, if a user in a forum successfully logs on, posts, replies, or sends a message or replies to a message book, if the user does not have any mouse clicks, after a

File Cache, database cache, optimized SQL, data shunting, horizontal and vertical division of database tables, and optimized code structure! Summary 1. why do the following data inconsistencies occur when multiple users are locked for concurrent

First Class: Integer Data bit: bit Data Type represents 0, 1 or NULL, that is, true, false. 1byte.int: 4 bytes are used to store positive and negative numbers. the storage range is-2 ^ 31 to 2 ^ 31-1.smallint. Positive and Negative values are stored

1. Permission System Introduction: The permission system of MySQL is simple to implement, and the relevant permission information is mainly stored in mysql. user, mysql. db, mysql. host, mysql_table_priv, and mysql. column_priv tables 1. Permission

System Environment: centos6.264-bit kernel version: 2.6.32-220. el6.x86 _ 64mysql version: 5.1.62 if you like this blog post, please give a thumbs up. For more blog posts, visit the linux open source technology blog 1, MySQL many System Environment:

Last night, I updated a batch of data. It took more than 20 minutes to use the old update method, but less than two seconds to end with mergeinto. The efficiency is really quite different. For details, see: Update T_TMP_N using the BIRTH field of

1. Routine DB2 maintenance operations 1. Database Start and Stop db2start -- start db2stop [force] -- stop 2. database connection, disconnection db2CONNECTTODBName [userUserIDusingPWD] -- establish connection &.. 1. Routine DB2 maintenance

In SQLSERVER2008R2, a Windows-authenticated login name was used to create a connection server xxxxx for accessing the ORACLE database. The test was successful and there was a problem with the wood. However, when other login names used the linked