php man page for maxdb_select_db

MAXDB_SELECT_DB(3)							 1							MAXDB_SELECT_DB(3)

maxdb_select_db - Selects the default database for database queries

SYNOPSIS
       bool maxdb_select_db (resource  $link, string  $dbname)

DESCRIPTION
	The  maxdb_select_db(3)  function  selects  the  default  database (specified by the $dbname parameter) to be used when performing queries
       against the database connection represented by the $link parameter.

       Note

	       This function should only be used to change the default database for the connection. You can select the default database  with  4th
	      parameter in maxdb_connect(3).

RETURN VALUES
	Returns TRUE on success or FALSE on failure.

EXAMPLES
       Example #1

	      Object oriented style

	      <?php
	      $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

	      /* check connection */
	      if (maxdb_connect_errno()) {
		 printf("Connect failed: %s
", maxdb_connect_error());
		 exit();
	      }

	      /* return name of current default database */
	      if ($result = $maxdb->query("SELECT SERVERDB FROM USERS WHERE USERNAME='MONA'")) {
		 $row = $result->fetch_row();
		 printf("Default database is %s.
", $row[0]);
		 $result->close();
	      }

	      /* change db to non existing db */
	      $maxdb->select_db("XXXXXXXX");

	      /* return name of current default database */
	      if ($result = $maxdb->query("SELECT SERVERDB FROM USERS WHERE USERNAME='MONA'")) {
		 $row = $result->fetch_row();
		 printf("Default database is %s.
", $row[0]);
		 $result->close();
	      }

	      $maxdb->close();
	      ?>

       Example #2

	      Procedural style

	      <?php
	      $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

	      /* check connection */
	      if (maxdb_connect_errno()) {
		 printf("Connect failed: %s
", maxdb_connect_error());
		 exit();
	      }

	      /* return name of current default database */
	      if ($result = maxdb_query($link, "SELECT SERVERDB FROM USERS WHERE USERNAME='MONA'")) {
		 $row = maxdb_fetch_row($result);
		 printf("Default database is %s.
", $row[0]);
		 maxdb_free_result($result);
	      }

	      /* change db to non existing db */
	      maxdb_select_db($link, "XXXXXXXX");

	      /* return name of current default database */
	      if ($result = maxdb_query($link, "SELECT SERVERDB FROM USERS WHERE USERNAME='MONA'")) {
		 $row = maxdb_fetch_row($result);
		 printf("Default database is %s.
", $row[0]);
		 maxdb_free_result($result);
	      }

	      maxdb_close($link);
	      ?>

       The above example will output something similar to:

       Default database is <...>.

       Warning: maxdb_select_db(): -10709 Connection failed (RTE:database not running) <...>

       Warning: maxdb_query(): -10821 Session not connected [] <...>

       Warning: maxdb_close(): -10821 Session not connected [] <...>

SEE ALSO
       maxdb_connect(3), maxdb_real_connect(3).

PHP Documentation Group 													MAXDB_SELECT_DB(3)