MySQL

Mysql scheduled script (event), similar to oracle job, I have two tables: tb_push_data and snapshot now need to back up the Qualified Data of tb_push_data to the table tb_push_data_log www.2cto.com every once in a while. Create a stored procedure

Mysql str_to_date string to date mysql built-in function, in mysql, use str_to_date () to convert string to date. Instance: www.2cto.com has the same separator, and the year, month, and day must be consistent select str_to_date ('2014/1/2 12:00:34

Problem: It is reinstalled after uninstallation. It will not work after re-installed N times. I still cannot delete the items in the registry. Solution: I have met your experience, and I have solved it myself. You can solve it by following the

There are installation files in the DMG format of mysql in mac, but they are not uninstalled ...... Very depressing.I searched the internet and found that the method was manually deleted.Www.2cto.comMany articles describe incomplete files to be

Suse Linux 10 MySql random start SUSE 10 system, the system has installed mysql, but the path is not in/usr/local, run service mysql start can normally start www.2cto.com in/etc/init. d/The following command is run on the mysql file. The following

The reduction of the mysql ibdata1 file has recently found that MYSQL fragments are very large, occupying tens of millions of shards in a single tablespace, but alert table table_name engine = innodb alone is basically unable to be executed, because

I have never encountered any problems with migrating mysql to db2 before, so this work has been very hard. The following problems occur: installation problem www.2cto.com 1. for user problems, users with different permissions must be created and

Mysql (slow-query) Quick Method for enabling slow log query mysql has a function that can log down to run slow SQL statements. By default, www.2cto.com without this log opens my. ini, find [mysql] and add long_query_time = 2log-slow-queries =

On CentOS 6.2, MYSQL is installed using YUM because XAMPP does not support 64-bit, so I still install MYSQL myself. Use the default yum. Www.2cto.com [plain] yes | yum install mysql-server and then run [plain] service mysqld start. There will be the

MYSQL database Naming and Design specifications do you have a headache in obtaining MYSQL database naming and designing specifications? If this is the case, the following articles will give you corresponding solutions. The following articles mainly

MySql USER permission control this article describes how to CREATE and delete accounts in MySql, and how to set and introduce permissions of various accounts to create user accounts: www.2cto.com [SQL] CREATE USER user_name IDENTIFIED BY 'your _

Mysql date and character conversion date_format (date, '% Y-% m-% D') --------------> to_char () in oracle; str_to_date (date, '% Y-% m-% D') --------------> to_date () in oracle; www.2cto.com % Y: indicates the 4-digit year % y: indicates the

Mysql authorizes grant all privileges 1. Change the table. It may be that your account is not allowed to log on remotely, but only on localhost. At this time, you only need to log on to mysql on the localhost computer and change the "host" entry in

The ssh framework uses mysql-related modifications to the mysql version used for mysql-installer-community-5.5.29.0 www.2cto.com 1. modify the path of the default database character set file: Install the root directory, MySQL \ MySQL Server 5.5 \ my.

Mysql batch deletes a large amount of data. Assume that one table (syslogs) has 10 million records, and you need to delete all the records with statusid = 1 without stopping the service, with about 6 million records, if you directly execute delete

Mysql oracle Time Operation example select alarmid, alarmtype, dttimestamp from hdralarmbase20130320 where dttimestamp> to_date ('2017-3-20 10:12:28 ', 'yyyy-mm-dd hh24: mi: ss') Similar usage of mysql SELECT alarmid, alarmtype, dttimestamp FROM

Mysql stored procedures using variables as table names 1. use variables as table names: simply use the set or declare statement to define variables, and then directly use the SQL table name. mysql regards the variable name as the table name. This is

Mysql string truncation function 1. Extract string left (str, length) from left. Description: left (truncated field, truncated length) Example: select left (content, 200) as abstract from my_content_t 2. Extract the right (str, length) string from

Mysql show processlist output explanation 1. start mysql and enter show processlist. If you have the SUPER permission, you can view all the threads. Otherwise, you can only view the self-initiated threads (this refers, the current corresponding

The time when a bugfree email is sent is inconsistent with the system time. 1. First, find the my. ini and PHP. ini files in MYSQL and php respectively. 2. Modify php/php. ini, find [Date]; Defines the default timezone used by the date functions;