Vinodkram » Mysql

select multiple column from multiple table in cakePHP

admin — Sat, 27 Nov 2010 14:51:14 +0000

$markers = $this->Post->find(‘all’, array( ‘joins’ => array(
array(
‘table’ => ‘cp_user’,
‘alias’ => ‘users’,
‘type’ => ‘left’,
‘foreignKey’ => false,
‘conditions’=> array(‘Post.postauthor = users.id’)
)
),
‘conditions’=>’Post.poststatus = 1′,
‘fields’=>array(‘Post.postid’,
‘Post.postdate’,
‘Post.posttitle’,
‘Post.postmessage’,
‘Post.poststatus’,
‘Post.commentstatus’,
‘Post.commenttotal’,
‘Users.id’,
‘Users.firstname’
)
)
);

$this->set(‘cp_post’,$markers);

This will generate the below query in mysql
—————————————————-
SELECT `Post`.`postid`, `Post`.`postdate`, `Post`.`posttitle`, `Post`.`postmessage`, `Post`.`poststatus`, `Post`.`commentstatus`, `Post`.`commenttotal`, `Users`.`id`, `Users`.`firstname` FROM `cp_posts` AS `Post` left JOIN cp_user AS `users` ON (`Post`.`postauthor` = `users`.`id`) WHERE `Post`.`poststatus` = 1

How to fetch multi-lingual content from database

admin — Thu, 08 Jul 2010 17:41:24 +0000

The basic purpose of this post is to guide you all about fetching multilingual content from database.
I mean to say that, if you have stored japanese text in your database, So in order to fetch the japanese content , you need to set the character encoding to UTF-8 format, while communication with the database for fetching the result.

In Case of MYSQLi

$mysqli = new mysqli("localhost", "db_user", "db_password","db_name");

/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}

/* change character set to utf8 */
if (!mysqli_set_charset($link, "utf8")) {
printf("Error loading character set utf8: %s\n", mysqli_error($link));
} else {
printf("Current character set: %s\n", mysqli_character_set_name($link));
}

/* Select queries return a resultset */
if ($result = $mysqli->query(“SELECT ColumnName FROM tableName “)) {
printf(“Select returned %d rows.\n”, $result->num_rows);

/* free result set */
$result->close();
}
$mysqli->close();
?>

In case you are using multiple database

$link1 = mysqli_connect('localhost','user1','pass1',TRUE);
$link2 = mysqli_connect('localhost','user1','pass1',TRUE);

mysqli_select_db('db1',$link1);
mysqli_select_db('db2',$link2);

mysqli_set_charset('latin1',$link1);
mysqli_set_charset('utf8',$link2);
?>

If you don’t pass in “true” to mysqli_connect() in the example below, $link1 and $link2 will have the same resource id# and both database connections will end up being set to utf-8 charsets.

How to import data into mysql db from sql file

Tue, 26 May 2009 10:15:50 +0000

Open your shell prompt

navigate to the mysql directory (default is /var/lib/mysql)
cd /pathToYourMysqlDirectory/

then type the below command

$ mysql -u mysqlUserName -p Password -h HostName DatabaseName < /loactionOfYourSqlFile/yourSqlFileName.sql

Where
mysqlUserName = Mysql User Name
Password = Mysql User Password
HostName = Mysql Host Name (This could be local host or some remote IP where you want to import the database)
DatabaseName = Mysql Database Name
/loactionOfYourSqlFile/yourSqlFileName.sql = This is the location of your sql file

Note : This is work only in Linux system

Thanks