1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155
|
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.maxdb-select-db">
<refnamediv>
<refname>maxdb_select_db</refname>
<refname>maxdb->select_db</refname>
<refpurpose>Selects the default database for database queries</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>maxdb_select_db</methodname>
<methodparam><type>resource</type><parameter>link</parameter></methodparam>
<methodparam><type>string</type><parameter>dbname</parameter></methodparam>
</methodsynopsis>
<para>
The <function>maxdb_select_db</function> function selects the default
database (specified by the <parameter>dbname</parameter> parameter) to be
used when performing queries against the database connection
represented by the <parameter>link</parameter> parameter.
</para>
<note>
<para>
This function should only be used to change the default database for the connection.
You can select the default database with 4th parameter in <function>maxdb_connect</function>.
</para>
</note>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<example>
<title>Object oriented style</title>
<programlisting role="php">
<![CDATA[
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
/* return name of current default database */
if ($result = $maxdb->query("SELECT SERVERDB FROM USERS WHERE USERNAME='MONA'")) {
$row = $result->fetch_row();
printf("Default database is %s.\n", $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.\n", $row[0]);
$result->close();
}
$maxdb->close();
?>
]]>
</programlisting>
</example>
<example>
<title>Procedural style</title>
<programlisting role="php">
<![CDATA[
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
/* return name of current default database */
if ($result = maxdb_query($link, "SELECT SERVERDB FROM USERS WHERE USERNAME='MONA'")) {
$row = maxdb_fetch_row($result);
printf("Default database is %s.\n", $row[0]);
maxdb_free_result($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.\n", $row[0]);
maxdb_free_result($result);
}
maxdb_close($link);
?>
]]>
</programlisting>
</example>
&example.outputs.similar;
<screen>
<![CDATA[
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 [] <...>
]]>
</screen>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>maxdb_connect</function></member>
<member><function>maxdb_real_connect</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
|