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<?xml version="1.0" encoding="UTF-8"?>
<refentry version="5.0-subset Scilab" xml:id="mysql_select_db" xml:lang="en"
xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:ns3="http://www.w3.org/1999/xhtml"
xmlns:mml="http://www.w3.org/1998/Math/MathML"
xmlns:db="http://docbook.org/ns/docbook">
<refnamediv>
<refname>mysql_select_db</refname>
<refpurpose>Causes the database specified by db to become the
default (current) database on the connection specified by mysql.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>result = mysql_select_db(mysql, db)</synopsis>
</refsynopsisdiv>
<refsection>
<title>Description</title>
<para>Causes the database specified by db to become the default
(current) database on the connection specified by mysql.
In subsequent queries, this database is the default for table
references that do not include an explicit database specifier.</para>
<para><literal>mysql_select_db</literal> fails unless the
connected user can be authenticated as having permission
to use the database.</para>
</refsection>
<refsection>
<title>Parameters</title>
<variablelist>
<varlistentry>
<term>mysql</term>
<listitem>
<para>a MySQL pointer</para>
</listitem>
</varlistentry>
<varlistentry>
<term>db</term>
<listitem>
<para>the name of the database to be selected</para>
</listitem>
</varlistentry>
<varlistentry>
<term>result</term>
<listitem>
<para>Zero for success. Nonzero if an error occurred.</para>
<para>Error list:</para>
<itemizedlist>
<listitem><para>CR_COMMANDS_OUT_OF_SYNC Commands were executed in an improper order.</para></listitem>
<listitem><para>CR_SERVER_GONE_ERROR The MySQL server has gone away.</para></listitem>
<listitem><para>CR_SERVER_LOST The connection to the server was lost during the query.</para></listitem>
<listitem><para>CR_UNKNOWN_ERROR An unknown error occurred.</para></listitem>
</itemizedlist>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Examples</title>
<programlisting role="example"><![CDATA[
username = 'glpk'; // Put your username
password = 'gnu'; // Put your password
database = 'glpk';
port = 3306; // use netstat -a | grep mysql to locate the mysql port
// or ps -elf | grep mysql and locate --port
myhost = 'localhost'; // localhost most of the time
sql_ptr = mysql_init();
status = mysql_real_connect(sql_ptr, myhost, username, password, database, port);
status = mysql_select_db(sql_ptr,'glpk');
if (status) then
printf('Error message: %s, error number: %d\n', mysql_error(sql_ptr), mysql_errno(sql_ptr));
end
mysql_close(sql_ptr);
]]></programlisting>
</refsection>
<refsection>
<title>See Also</title>
<simplelist type="inline">
<member><link linkend="mysql_init">mysql_init</link></member>
<member><link linkend="mysql_real_connect">mysql_real_connect</link></member>
<member><link linkend="mysql_close">mysql_close</link></member>
</simplelist>
</refsection>
<refsection>
<title>Authors</title>
<simplelist type="vert">
<member>Yann COLLETTE</member>
</simplelist>
</refsection>
</refentry>
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