Download here:

http://wordpress.org/plugins/buddypress-profile-views

Currently this project facilitate following functionalities:

• Create , copy, drop, rename and alter tables, indexes, views.
• Perform table maintenance.
• Delete, add, and edit fields of Tables and Indexes.
• Execute any SQL statement and batch queries.
• Manage keys on fields.
• Create (*) and read dumps of tables.
• Export and Import data to CSV, XML, and EXCEL.
• Search globally in a database or its subset.
• Support InnoDB tables and foreign keys.

For more DetailsClick Here

$rd_args = array(
	'meta_key' => 'show_on_homepage',
	'meta_value' => 'on'
);

$rd_query = new WP_Query($rd_args);

If you need to query all posts except the ones with this pair of meta key and value, you can use the following parameters:

$rd_args = array(
	'meta_key' => 'show_on_homepage',
	'meta_value' => 'on',
	'meta_compare' => '!='
);

$rd_query = new WP_Query( $rd_args );

Get Posts with a Specific Custom Field Value

// the meta_key 'color' with the meta_value 'white'
$rd_args = array(
	'meta_query' => array(
		array(
			'key' => 'color',
			'value' => 'white'
		)
	)
); 
$rd_query = new WP_Query( $rd_args );

Get all the posts except the ones with meta key «color» and meta value «white»:

$rd_args = array(
	'meta_query' => array(
		array(
			'key' => 'color',
			'value' => 'white',
			'compare' => '!='
		)
	)
);

$rd_query = new WP_Query( $rd_args );

Get all the posts with white OR green color custom field value:

// custom field name is color and custom field value is 'white' OR 'green'
$rd_args = array(
	'meta_query' => array(
		array(
			'key' => 'color',
			'value' => array('white','green'),
			'compare' => 'IN'
		)
	)
); 
$rd_query = new WP_Query( $rd_args );

Get all the posts (products in online shop for example) except white products and green products:

$rd_args = array(
	'meta_query' => array(
		array(
			'key' => 'color',
			'value' => array('white','green'),
			'compare' => 'NOT IN'
		)
	)
);
$rd_query = new WP_Query( $rd_args );

Get Posts Within a Given Range of Numeric Meta Values

// the product price is more than 2000 and less than 4000
$rd_args = array(
	'meta_query' => array(
		array(
			'key' => 'price',
			'value' => array( 2000, 4000 ),
			'type' => 'numeric',
			'compare' => 'BETWEEN'
		)
	)
);
$rd_query = new WP_Query( $rd_args );

Numeric Comparison

$rd_args = array(
	'meta_query' => array(
		array(
			'key' => 'price',
			'value' => 2000,
			'type' => 'numeric',
			'compare' => '>='
		)
	)
);

The product price is less than 4000:

$rd_args = array(
	'meta_query' => array(
		array(
			'key' => 'price',
			'value' => 4000,
			'type' => 'numeric',
			'compare' => '<'
		)
	)
); 
$rd_query = new WP_Query( $rd_args );

Query Posts by Several (two or more) Custom Field Values

$rd_args = array(
	'meta_query' => array(
		'relation' => 'AND',
		array(
			'key' => 'color',
			'value' => 'white'
		),
		array(
			'key' => 'price',
			'value' => array( 2000, 4000 ),
			'type' => 'numeric',
			'compare' => 'BETWEEN'
		)
	)
); 
$rd_query = new WP_Query( $rd_args );

Hide wordpress adminbar

add_action('init', 'remove_admin_bar');
function remove_admin_bar() {
if ( !current_user_can('administrator') && !is_admin()) {
show_admin_bar(false);
}
}

Show user/author posts only in admin

By default wordpress displays all posts for any user logged into wp-admin. The following code restricts the post list by displaying only his posts.

function wps_get_post_list_by_user($clauses) {
if (is_admin()) {
global $user_ID, $wpdb;
// $clauses['join'] = ", wp_posts";

$clauses['where'] .= " AND wp_posts.post_author = ".$user_ID;

};
return $clauses;
};
if ( !current_user_can( 'edit_users' ) ) {
add_filter('posts_clauses', 'wps_get_post_list_by_user');
}

Remove unwanted admin menus

function remove_admin_menu_items() {
$remove_menu_items = array(__('Links'), __('Dashboard'),  __('Media'), __('Links'), __('Appearance'), __('Tools'),  __('Settings'), __('Comments'), );
global $menu;
end ($menu);
while (prev($menu)){
$item = explode(' ',$menu[key($menu)][0]);
if(in_array($item[0] != NULL?$item[0]:"" , $remove_menu_items)){
unset($menu[key($menu)]);}
}
}

if(get_logged_user_role()!="administrator"){
add_action('admin_menu', 'remove_admin_menu_items');
}

Set Post Expert Length

function custom_excerpt_length( $length ) {
	return 100;
}
add_filter( 'excerpt_length', 'custom_excerpt_length', 999 );

Hide Plugin Update Notifications

just copy and paste that code in the .php file of the plugin

add_filter('site_transient_update_plugins', 'dd_remove_update_nag');
function dd_remove_update_nag($value) {
 unset($value->response[ plugin_basename(__FILE__) ]);
 return $value;
}