文件操作 - contrib-dblink-close.html

文件: /usr/share/doc/postgresql-9.2.24/html/contrib-dblink-close.html

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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>dblink_close</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN147474"
></A
><H2
>Name</H2
>dblink_close&nbsp;--&nbsp;closes a cursor in a remote database</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN147477"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>dblink_close(text cursorname [, bool fail_on_error]) returns text
dblink_close(text connname, text cursorname [, bool fail_on_error]) returns text</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN147479"
></A
><H2
>Description</H2
><P
>    <CODE
CLASS="FUNCTION"
>dblink_close</CODE
> closes a cursor previously opened with
    <CODE
CLASS="FUNCTION"
>dblink_open</CODE
>.
   </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN147484"
></A
><H2
>Arguments</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="PARAMETER"
>connname</TT
></DT
><DD
><P
>       Name of the connection to use; omit this parameter to use the
       unnamed connection.
      </P
></DD
><DT
><TT
CLASS="PARAMETER"
>cursorname</TT
></DT
><DD
><P
>       The name of the cursor to close.
      </P
></DD
><DT
><TT
CLASS="PARAMETER"
>fail_on_error</TT
></DT
><DD
><P
>       If true (the default when omitted) then an error thrown on the
       remote side of the connection causes an error to also be thrown
       locally. If false, the remote error is locally reported as a NOTICE,
       and the function's return value is set to <TT
CLASS="LITERAL"
>ERROR</TT
>.
      </P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN147503"
></A
><H2
>Return Value</H2
><P
>    Returns status, either <TT
CLASS="LITERAL"
>OK</TT
> or <TT
CLASS="LITERAL"
>ERROR</TT
>.
   </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN147508"
></A
><H2
>Notes</H2
><P
>    If <CODE
CLASS="FUNCTION"
>dblink_open</CODE
> started an explicit transaction block,
    and this is the last remaining open cursor in this connection,
    <CODE
CLASS="FUNCTION"
>dblink_close</CODE
> will issue the matching <TT
CLASS="COMMAND"
>COMMIT</TT
>.
   </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN147514"
></A
><H2
>Examples</H2
><PRE
CLASS="SCREEN"
>SELECT dblink_connect('dbname=postgres');
 dblink_connect
----------------
 OK
(1 row)

SELECT dblink_open('foo', 'select proname, prosrc from pg_proc');
 dblink_open
-------------
 OK
(1 row)

SELECT dblink_close('foo');
 dblink_close
--------------
 OK
(1 row)</PRE
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文件操作 - contrib-dblink-close.html

文件: /usr/share/doc/postgresql-9.2.24/html/contrib-dblink-close.html

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