To check the sizes of all of the tables in a specific database, at the mysql> prompt, type the following command. Replace database_name with the name of the database that you want to check: CopySELECT table_name AS "Table", ROUND(((data_length + index_length) / 1024 / 1024), 2...
databasesand tables. For example, if a database's system memory runs out, checking the database or table size helps identify where thestorageis particularly overwhelmed. This article provides three methods to check the size for all MySQL databases, a single database, or a table within a data...
In this case, we haven't specified a database that we want to work with, which means MySQL will set our current database to NULL. We can check the list of our databases with the SHOW DATABASES statement or simply select the required database in the following way: ...
This finds 99.99% of all errors. What it cannot find is corruption that involvesonlythe data file (which is very unusual). If you want to check a table, you should normally runmyisamchkwithout options or with the-s(silent) option. ...
Check if String Contains Certain Data in MySQL Table Using SELECT With INSTR() FunctionAnother method to check whether a string occurs in a table involves using the SELECT statement with the INSTR() function. This function is similar to LOCATE() and is employed to determine the position of ...
To perform the optimization, log in to yourSite Tools>MySQL>phpMyAdminand select the database whose tables you wish to optimize. A list with all the database’s tables will appear. Tick the tables you wish to optimize, or click [Check All] to select all tables. From the [With selected...
You can use the error log files to check if a MySQL database is corrupt or not. Usually, if your database is installed with the default values, the location of the file is: In Windows : C:\ProgramData\MySQL\MySQL Server 8.0\data\hostname.err ( here, replace 8.0 with your MySQL ...
mysqlcheck <database name> <table name>Copy How to Repair MySQL Database There are several methods how to repair a database in MySQL. However, keep in mind that these methods are not a quick fix and can result indata loss. If the database tables are corrupt often, identify the reason...
What I am trying to do is create some code which will allow me to check if a table of a certain name exists in a database. If the table DOES exist, then I want the code to then insert values into the table. If the table does not exist, then the table should be created, and ...
In this tutorial you will learn how to select the records from MySQL database tables using the SQL SELECT query in PHP.