Let’s say, you want to analyze the stages of a query that is spending most of the time in, you need to enable the respective logging using the below query. 1 2 3 4 5 MySQL> update performance_schema.setup_consumers set ENABLED='YES' where NAME='events_stages_current'; Query OK, ...
myisamchk -e -i tbl_name This is like the previous command, but the -i option tells myisamchk to print additional statistical information. In most cases, a simple myisamchk command with no arguments other than the table name is sufficient to check a table. PREV...
In this article, we will take a look at how to perform database changes on MySQL and MariaDB in a controlled way. We will talk about some good habits in your day-to-day DBA work. We’ll focus on pre-requirements and tasks during the actual operations and problems that you may face ...
important to mention that tables are stored in INFORMATION_SCHEMA and that means that after a mysqld restart all the information will be lost. So if you really need that informationyou should copy it to another table or export to a csv for further analysis. Current Audit Login Options...
| memory/sql/mysql_plugin | 1 | 512 bytes | 512 bytes | 2 | 768 bytes | 384 bytes | | memory/innodb/log0recv | 1 | 408 bytes | 408 bytes | 3 | 2.00 MiB | 683.15 KiB | | memory/sql/THD::sp_cache | 8 | 312 bytes | 39 bytes | 8 | 312 bytes | 39 bytes | | ...
| information_schema | | performance_schema | +---+ 2 row in set (0.0006 sec) It seems I don’t have access to many databases… The default privilege is very limited: mysql> show grants; +---+ | Grants for user1@% | +---+ | GRANT USAGE ON.TOuser1%@user1%| ...
At first, i have to mention the architecture in Figure1which is used all the time when you search the keywords 'Nosql' && 'MySQL'. Figure Figure 1: Memcached with InnoDB Architecture 3 Get MySQL source code MySQL with memcached was just in MySQL Labs before, now it's contained in trunk...
When we need to use the export schema structure to export any database or table from the server using phpMyAdmin, then we will follow the below steps: 1. Click the MySQL database name present on the left menu of phpmyAdmin: When you access your phpMyAdmin page and log in through the use...
Hevo automatically maps the schema, and you will receive alerts in case of any error. Migrate MySQL Servers in 2 Steps Start For Free Method 2: Using MySQL Dump Below are the steps you can follow to understand how to migrate MySQL database between 2 servers: Step 1: Backup the Data...
Re: How to check if the database and tables exist through connector.NETPosted by: Fernando Gonzalez Date: October 19, 2012 11:09AM Hi, A good approach would be to use the information_schema database (which is supported since MySql 5.0, see http://dev.mysql.com/doc/refman/5.0/en/...