Display pagination in reservation Plugin and and Print table as pdf

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hi i find the solution by :

https://stackoverflow.com/questions/5322266/add-pagination-in-wordpress-admin-in-my-own-customized-plugin

$pagenum = isset( $_GET['pagenum'] ) ? absint( $_GET['pagenum'] ) : 1;
$limit = 10; // number of rows in page
$offset = ( $pagenum - 1 ) * $limit;
$total = $wpdb->get_var( "SELECT COUNT(`id`) FROM {$wpdb->prefix}table_name" `);
$num_of_pages = ceil( $total / $limit );`

i change this to my database:

$entries = $wpdb->get_results( "SELECT * FROM {$wpdb->prefix}table_name LIMIT $offset, $limit" );
$page_links = paginate_links( array(
'base' => add_query_arg( 'pagenum', '%#%' ),
'format' => '',
'prev_text' => __( '«', 'text-domain' ),
'next_text' => __( '»', 'text-domain' ),
'total' => $num_of_pages,
'current' => $pagenum
) );

if ( $page_links ) {
echo '<div class="tablenav"><div class="tablenav-pages" style="margin: 1em 0">' . $page_links . '</div></div>';
}

thats all .
just now i have to find how can i delete all the rservation?