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>DISCONNECT</H1
><DIV
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><A
NAME="AEN45406"
></A
><H2
>Name</H2
>DISCONNECT&nbsp;--&nbsp;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
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><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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><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
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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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