PHP

In a CBO optimizer-based environment, the generation of SQL Execution plans depends on the authenticity and completeness of statistical information. Such as column discretization, column histograms, index availability, and index clustering. In a CBO

LinuxC program inserts Chinese data garbled into MySQL. First, read the article "Cannot display MySQL Chinese Characters in Linux and solve sock Link errors" w Linux C Programming inserts Chinese data garbled into MySQL. First read the article

I. Environment Information 1) master database (Single Instance) host platform: AIX6.1 database version: 11.2.0.3 (psu5) 2) backup database (crs deployed) host platform: AIX6.1 database version: 11.2.0.3 (psu5) 2: Background I. Environment

Uninstalling an Oracle database is not as simple as deleting other software. Especially for new employees, when deleting a database and re-installing it, it often appears Uninstalling an Oracle database is not as simple as deleting other software.

If you use nagios to monitor mysql master and slave databases, you need to install the nrpe software package and the nagios software package on the monitoring host. The installation steps are not described. If you use nagios to monitor mysql master

Song Changyi (I) has been a very small number of zookeeper editions. there are two major problems: please refer to the following link for more information: the latest version of Alibaba Cloud has been released. why? Song (I) songZookeeper is the

Learning phpsession can be used in many places. For example, it is very easy for the program to remember the user session. After reading the following articles, you will understand it. PHP session usage is actually very simple. It can save the data

For most password encryption, we can use md5, sha1, and other methods. This can effectively prevent data leaks, but these methods only apply to data encryption that does not require restoration. For the information to be restored, a reversible

Oracle will migrate the entire row of data to a new data block, and put only one pointer to the original space of the row, pointing to the new location of the row, and the remaining space of the row is empty. Oracle will migrate the entire row of

This article will share with you the sample code for dynamically generating static HTML pages in PHP. For more information, see temp.html. The Code is as follows: {Penglig_site_title} Test. php The Code is as follows: Header ('content-type:

For masters who often work under SQL * Plus, they always query the help commands of SQL * Plus from time to time. Too many. For masters who often work under SQL * Plus, they always query the help commands of SQL * Plus from time to time. Too many.

Function. inc. php surpasses php /** * Global Function * * @ Author Avenger * @ Version 1.14 $ Id 10:10:08 $ */ /** * A prompt box is displayed. * * @ Access public * @ Param string $ txt a prompt box is displayed. $ txt indicates the content to be

MySQL Universal Query program implemented by php if (get_magic_quotes_gpc () = 1 ){ ?> MySQL common query Program Note that in this program, magic_quotes_gpc in the PHP configuration file (PHP3 is php3.ini and PHP4 is php. ini) Set it to Off

When it comes to tracking SQL statements, some people may ask about this function, and some may think of using the audit function. To track SQL statements and enable the audit function, it will become a waste or When it comes to tracking SQL

It is easy to understand. The ID of the cookie-saved shopping cart and the data of the db-saved shopping cart. // Code for generating the shopping cart session If (! $ Session &&! $ Scid ){ /* Session is used to differentiate each shopping cart,

To put it simply, phpmyadmin is a mysql management tool. After installing this tool, you can directly manage mysql Data on the web without executing system commands, it is very suitable for database managers who are unfamiliar with database

The previous article is about the design of the shopping cart, which is about promotion. The supported promotions are similar to discounts, how many gifts to buy, and how much money to give gifts. The general idea of the rule mode is used. Each

For php paging ideas and the use of ZF, if you need a friend, you can refer to it and get only two variables to get half done: Number of records to be displayed per page $ pageSize Total data volume in the table $ rowCount With the above two

You have started Apache and MySQL servers. When CentOS is installed, the two servers are not started. We need to start them in the system service. You have started Apache and MySQL servers. When CentOS is installed, the two servers are not started.

Experience: Online logs are classified into current online logs and non-current online logs. the corruption of Non-current online logs is relatively simple. Generally, you can solve the problem by using the clear command. Experience: Online logs are