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. ...
Please note thatmyisamchk commandthat we discussed a while back works similar to the mysqlcheck command. However, the advantage of mysqlcheck command is that it can be executed when the mysql daemon is running. So, using mysqlcheck command you can check and repair corrupted table while the d...
I want to check for the existance of a table in a Stored procedure, and I need some function that will return 0 or 1 if the table exists or not, and I have hard time locating one in the documentation, someting that will work in the folowing code: ...
https://mariadb.com/kb/en/mariadb/optimizing-table_open_cache/ setting the query_cache_type to 1 (per mysqltuner recommendations): $ sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf change the query_cache_type to 1 in the [mysqld] section so it looks like this: ... [mysqld] ... q...
Analyze the table Optimize the table Check table errors Checksum Repair There are a couple of methods to access the Table Maintenance tool from within dbForge Studio for MySQL. Method 1 In theDatabasemenu selectTable Maintenanceoption from the drop-down list as shown in the following screenshot...
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 ...
| Create role | Server Admin | To create new roles | | Create temporary tables | Databases | To use CREATE TEMPORARY TABLE | | Create view | Tables | To create new views | | Create user | Server Admin | To create new users | ...
Use theEXISTSOperator to Check if a Row (Record) Exists in MySQL Table Example Code: SELECTEXISTS(SELECTNAMEFROMms20.personWHEREID=6)asOUTPUT; Output (if record found): OUTPUT1 Example Code: SELECTEXISTS(SELECTNAMEFROMms20.personWHEREID=7)asOUTPUT; ...
CREATE DATABASE example_db; CREATE user 'example_user'@'192.0.2.0' IDENTIFIED BY 'password'; GRANT SELECT,INSERT,UPDATE,DELETE ON example_db.* TO 'example_user' IDENTIFIED BY 'password'; USE example_db; CREATE TABLE message_app_users (user_id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, user...
I'd like to know how could I unlock tables blocked by other user sessions with WRITE LOCKS. mysql> Show open tables; +---+---+---+---+ | Database | Table | In_use | Name_locked | +---+---+---+---+ | mydatabase | product | 27 | 0 | How can I release...