Wiki

yum install mysql-server mysql php-mysql

1. Set the MySQL service to start on boot

chkconfig --levels 235 mysqld on

2. Start the MySQL service

service mysqld start

3. Log into MySQL

mysql -u root

4. Set the root user password for all local domains

SET PASSWORD FOR 'root'@'localhost' = PASSWORD('new-password');
SET PASSWORD FOR 'root'@'localhost.localdomain' = PASSWORD('new-password');
SET PASSWORD FOR 'root'@'127.0.0.1' = PASSWORD('new-password');

5. Drop the Any user

DROP USER ''@'localhost';
DROP USER ''@'localhost.localdomain';

6. Exit MySQL

exit

InnoDB corruption repair guide — Szabó Dávid 2016/09/01 15:54

start transaction
...
commit

SELECT * FROM ... WHERE <primary_key> = ... FOR UPDATE; // sor szinten lockol
// akkor is, ha még nem létező kulcsra adjuk ki!

GYORS adatbetöltés. (pl 300.000 sor 1.8 sec volt)

LOAD DATA
      INFILE '/var/lib/mysql-files/valami.csv'
      INTO TABLE egy_tabla
      FIELDS TERMINATED BY ','
      ENCLOSED BY '"'
      LINES TERMINATED BY '\n';

Előfordulhat, hogy máshonnan nem fogadja el a fájl a mysql:

The MySQL server is running with the --secure-file-priv option so it cannot execute this statement

Ekkor:

SHOW VARIABLES LIKE "secure_file_priv";

és másold oda a fájlt.