Backup of MySQL database under Linux-putty

Prerequisite: With SSH landing privileges

Work Step:

Download software putty, set SSH login option

After landing, enter your home page directory * (accessible via FTP)

Executes the mysqldump command to perform a database backup, while the Mysqlrestore command restores the database.

Format:

pXXXXXXX@kundenserver:~ > mysqldump -hdbXX.puretec.de -upXXXXXXX -p******** dbXXXXXXX > dbXXXXXXXX.sql

pXXXXXXX@kundenserver:~ > mysql -hdbXX.puretec.de -upXXXXXXX -p******** dbXXXXXXX < dbXXXXXXXX.sql

After the mysqldump is executed, a backup file is generated in the current directory (size and database size)

Download the backed up database package via FTP

Restore database work contrary to the above two parts

You can also write a PHP script to do the above:

Backing up files

include "../config.php";
MYSQL_CONNECT($dbhost, $dbuser, $dbpw) or die ( "<H3>无法访问数据库</H3>");
MYSQL_SELECT_DB($dbname) or die ( "<H3>数据库尚未建立</H3>");
$path = getenv("DOCUMENT_ROOT")."/DB_backup";
$result = MYSQL_QUERY("SHOW TABLES");
$numrow = MYSQL_NUM_ROWS($result);
for($i = 0;$i < $numrow;$i++) {
$table = MYSQL_RESULT($result,$i);
echo "$table ... ";
system(sprintf("mysqldump --opt -h $dbhost -u $dbuser -p$dbpw $dbname $table | gzip > %s/$table.sql.gz",$path));
echo "DONE\n\n";
}
MYSQL_CLOSE();

Recover files

include "../config.php";
system(sprintf(
　"gunzip -c %s/dump.sql.gz | mysql -h %s -u %s -p%s %s",
　getenv("DOCUMENT_ROOT"),
　$dbhost,
　$dbuser,
　$dbpw,
　$dbname
));
echo "+DONE";