【发布时间】:2011-10-24 05:48:13
【问题描述】:
尝试使用在 MySQL 服务器上运行 SQL 查询的 PHP 脚本将数据库复制到新数据库中。我到目前为止的代码是:
$dbh->exec("CREATE DATABASE IF NOT EXISTS $new_news CHARACTER SET UTF8;");
$results = $dbh->query("SHOW TABLES FROM $old_news");
$table_list = $results->fetchAll(PDO::FETCH_NUM);
foreach($table_list as $table_row){
foreach($table_row as $table){
$results = $dbh->query("SELECT table_type FROM information_schema.tables where table_schema = '$old_news' and table_name = '$table'");
$table_type = $results->fetch(PDO::FETCH_ASSOC);
$table_type = $table_type['table_type'];
if($table_type == 'BASE TABLE'){
echo "Creating table $table and populating...\n";
$dbh->exec("CREATE TABLE $new_news.$table LIKE $old_news.$table");
$dbh->exec("INSERT INTO $new_news.$table SELECT * FROM $old_news.$table");
}else if($table_type == 'VIEW'){
//echo "Creating view $table...\n";
//$dbh->exec("CREATE VIEW $new_news.$table LIKE $old_news.$table");
echo "$table is a view, which cannot be copied atm\n";
}else{
echo "Skipping $table_type $table, unsupported type\n";
}
}
}
这当前查看 $old_news 中的所有表,在 information_schema 中找到表类型,并根据类型在 $new_news 中创建一个相同的表。对于表,它会创建相同的表结构,然后使用“INSERT INTO SELECT”来填充它们。
如何在没有mysqldump 的情况下复制整个数据库的视图?
【问题讨论】:
标签: php mysql database view backup