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>DISCONNECT</H1
><DIV
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><A
NAME="AEN45406"
></A
><H2
>Name</H2
>DISCONNECT -- terminate a database connection</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN45409"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>DISCONNECT <TT
CLASS="REPLACEABLE"
><I
>connection_name</I
></TT
>
DISCONNECT [ CURRENT ]
DISCONNECT DEFAULT
DISCONNECT ALL</PRE
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><H2
>Description</H2
><P
> <TT
CLASS="COMMAND"
>DISCONNECT</TT
> closes a connection (or all
connections) to the database.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN45416"
></A
><H2
>Parameters</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="REPLACEABLE"
><I
>connection_name</I
></TT
></DT
><DD
><P
> A database connection name established by
the <TT
CLASS="COMMAND"
>CONNECT</TT
> command.
</P
></DD
><DT
><TT
CLASS="LITERAL"
>CURRENT</TT
></DT
><DD
><P
> Close the <SPAN
CLASS="QUOTE"
>"current"</SPAN
> connection, which is either
the most recently opened connection, or the connection set by
the <TT
CLASS="COMMAND"
>SET CONNECTION</TT
> command. This is also
the default if no argument is given to
the <TT
CLASS="COMMAND"
>DISCONNECT</TT
> command.
</P
></DD
><DT
><TT
CLASS="LITERAL"
>DEFAULT</TT
></DT
><DD
><P
> Close the default connection.
</P
></DD
><DT
><TT
CLASS="LITERAL"
>ALL</TT
></DT
><DD
><P
> Close all open connections.
</P
></DD
></DL
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><DIV
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><A
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></A
><H2
>Examples</H2
><PRE
CLASS="PROGRAMLISTING"
>int
main(void)
{
EXEC SQL CONNECT TO testdb AS DEFAULT USER testuser;
EXEC SQL CONNECT TO testdb AS con1 USER testuser;
EXEC SQL CONNECT TO testdb AS con2 USER testuser;
EXEC SQL CONNECT TO testdb AS con3 USER testuser;
EXEC SQL DISCONNECT CURRENT; /* close con3 */
EXEC SQL DISCONNECT DEFAULT; /* close DEFAULT */
EXEC SQL DISCONNECT ALL; /* close con2 and con1 */
return 0;
}</PRE
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><H2
>Compatibility</H2
><P
> <TT
CLASS="COMMAND"
>DISCONNECT</TT
> is specified in the SQL standard.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
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></A
><H2
>See Also</H2
><A
HREF="ecpg-sql-connect.html"
>CONNECT</A
>, <A
HREF="ecpg-sql-set-connection.html"
>SET CONNECTION</A
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