This article describes the Java method for invoking the MySQL stored procedure. Share to everyone for your reference. Specifically as follows:
The test code for the database is as follows:
1. New Table Test
?
1 2 3 4 5
CREATE
Do you have a headache for getting MySQL to change the character set? Don't worry, the following article will give you the correct solution, the following article is mainly introduced to get the MySQL change character set scheme, the following is
1. After the successful installation, through phpMyAdmin into MySQL, click on the "User" menu, the user "root" host "localhost" click Edit Permissions, the following has an option "Modify password", enter the password you want, such as: 123456.
2.
The following is passed in the CentOS test.
1. Stop mysqld Service;
/etc/init.d/mysql stop
2. Use the following command to start MySQL, to do not check the permissions of the way to start;
Cd/usr/local/mysql/bin
./mysqld_safe--skip-grant-tables
This article for you to introduce the MySQL timer event, to make the timer function MySQL constant global event_scheduler must be on or 1, interested friends can understand the nextTo make the timed function MySQL's constant global event_scheduler
Establish a database table maintenance specification
It is a good idea to perform a database table check on a regular basis rather than waiting for the problem to occur. Consideration should be given to establishing a schedule of preventative
Let's test it on the books. PHP connection MySQL
The code is as follows
$link =mysql_connect (' localhost ', ' root ', ' 123456 ');if (! $link) echo "Failed!";else echo "Success!";Mysql_close ();?>
Run code appears:
Call to undefined function '
MySQL Configuration for PHP
Error message: Class ' mysqli ' not found in
Answer:1. In the Conf/php.ini, in vim with "/php_mysql" search to Extension=php_mysql.dll, remove the front of the ";",
At the same time add extension=php_mysqli.dll below;
MySQL remote access We see most of the Internet is directly to the MySQL database authorization, but some friends found that the tutorial is still unable to connect to MySQL, the following small series for you to introduce a Linux under the MySQL
To improve the security of the server, this lesson is mainly about how to modify the MySQL port under Linux. Support for most system changes in Linux environments, such as CentOS and Ubuntu.
Demo Environment:
Linux CentOS 6.3 X32
Mysql 5.1.66
Plot restoreToday, the original plan to show the leader a small demo, yesterday in their own machine to increase the OK after the off-duty ...This morning after the meeting, the leader said, "Yesterday, I let our IT colleagues to set up a new test
Methods for querying data within a certain time interval in MySQL are commonly used, and can be implemented using functions such as To_days, Date_sub, and so on. The purpose of the To_days function is to return the number of days that the
When the character blank is inserted 0, not empty then the original value UPDATE T_pm_scheduleSET lesson_room_id1 = ifnull (lesson_room_id1, 0),Lesson_room_id2 = ifnull (lesson_room_id2, 0),LESSON_ROOM_ID3 = ifnull (lesson_room_id3,
For a brief introduction and download of Mydumper, please visit: https://launchpad.net/mydumperIn short, Mydumper is a multithreaded logical backup, and it is recommended to use Mydumper to improve backup efficiency, much faster than mysqldumper for
Adjust the number of concurrent databases in the production environment and the number of concurrent databases in the environmentDuring development and testing, we often do not care much about the concurrency configuration related to the database,
MySQL compressed version installation configuration, mysql compressed installation Configuration
Install and configure Mysql
1) modify the mysql configuration file
The default profile for mysql-5.7.11 is in mysql/my-default.ini, Or you create a my.
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