mysql documentation

I. Prepare the server because the binlog formats (Binary logs) between different MySQL versions may be different, so the best combination is the MySQL version of the Master and the Slave version. I. Prepare the server because the binlog formats

Preface The InnoDB Storage engine meets the MVCC and acid features and is essential in environments that require transaction support. In some environments, InnoDB may be better than MyISAM. However, in the eyes of many people, InnoDB tablespace

Note: This shows the encoding specification from the phpcms development documentation. Although it is called the phpcms development specification, I think this is the case for all PHP programming. After writing so many PHP codes, many codes may not

Some time ago, I tried to write several ranking stored procedures. Since I have never been in touch with them before, I wrote a full reference to the existing stored procedures. Fortunately, stored procedures can also be used. However, it was found

Account maintenance and restoration of the MySQL System * 1. Case Description In programming and development, it is critical to involve the database permission maintenance module. Once a problem occurs, it is difficult to troubleshoot and solve the

1. ndoutils CompilationWhen everything is ready and you need to compile and install it, you still need to pay attention to three points: 1. Specify the database type used, the Lib library of the database, and the header file of the database ..

PHP Tutorial. Introduction to installing PHP: this is a PHP Tutorial. a detailed page for installing PHP, which describes the related knowledge, skills, experience, and some php source code. Class = 'pingjiaf' frameborder = '0' src = 'http: //

All from an experiment, consider the following example: Table:Copy the Code code as follows:CREATE TABLE IF not EXISTS ' foo ' (' A ' int (ten) unsigned not NULL auto_increment,' B ' int (ten) unsigned not NULL,' C ' varchar (+) not NULL,PRIMARY

I admit that I am not the leader in PHP. However, after reading some PHP information, I think some functions need to be added to it to process database connections and integrate XML. To do this, I think I can create a class to process MySQL

It is a bit abrupt to give such a title, but this is a boundary value that I have been thinking about recently. The question is: how to define the data type for the time field in MySQL. In the previous MySQL database design, we designed all the time

From: http://blog.sina.com.cn/s/blog_53345e4c0100b6zk.html   Official documentation: Http://www.mchange.com/projects/c3p0/index.html 3 30 1000 false The preferredtestquery attribute is ignored. You cannot perform any operation on this

  SQL study notes quick review: Part 1: Basics Modifying SQL Chinese garbled characters: Set the first statement: Show variables;Run: Set character_set_client = gb2312;Run: Set character_set_results = gb2312; (the default setting is restored when

MySQL memory management is actually complicated. In summary, there are two types: 1-thread exclusive memory 2. Global shared memory Thread exclusive memory:Thread stack information uses memory (thread_stack): it is mainly used to store the

Summary of implicit conversions of MySQL and summary of mysql Preface I saw an article a few days ago: the implicit conversions of MySQL with millions of values are quite good, and I am not very clear about the implicit conversions of MySQL, so I

In this case, mysql was re-installed due to a server change. In the morning, my colleague encountered an error when testing mysql on the local connection server, MySQLserverhasgoneaway. Because I had not encountered this problem before, I searched

Due to the temporary use of overseas space, I found that the time was always wrong when I published a Blog. Based on my previous programming experience, this is a matter of time zone. It is not difficult to solve this problem. write down my

How to migrate? We learned from the MySQL documentation that InnoDB tablespaces can be shared or independent. For shared tablespaces, all tablespaces are placed in one file: ibdata1, ibdata2 .. ibdataN, in this case, there is no way to migrate

I. Optimizing mysql during compilation If you distribute and install mysql from the source code, note that the compilation process will have an important impact on the future target program. Different compilation methods may obtain similar target

The usage policy and optimization (high-performance index policy) bitsCN.com in this chapter are based on the above theoretical basis. In fact, once you understand the mechanism behind the index, therefore, selecting a high-performance policy

Performance Tuning Recommendations1. Optimize your query for query cachingMost MySQL servers have query caching turned on. This is one of the most effective ways to improve sex, and this is handled by the MySQL database engine. When many of the same