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>PostgreSQL 8.4.12 Documentation</TH
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>Appendix F. Additional Supplied Modules</TD
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>F.8. dblink</A
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><DT
><A
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>dblink_connect</A
> -- opens a persistent connection to a remote database</DT
><DT
><A
HREF="contrib-dblink-connect-u.html"
>dblink_connect_u</A
> -- opens a persistent connection to a remote database, insecurely</DT
><DT
><A
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>dblink_disconnect</A
> -- closes a persistent connection to a remote database</DT
><DT
><A
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>dblink</A
> -- executes a query in a remote database</DT
><DT
><A
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>dblink_exec</A
> -- executes a command in a remote database</DT
><DT
><A
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>dblink_open</A
> -- opens a cursor in a remote database</DT
><DT
><A
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>dblink_fetch</A
> -- returns rows from an open cursor in a remote database</DT
><DT
><A
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>dblink_close</A
> -- closes a cursor in a remote database</DT
><DT
><A
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>dblink_get_connections</A
> -- returns the names of all open named dblink connections</DT
><DT
><A
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>dblink_error_message</A
> -- gets last error message on the named connection</DT
><DT
><A
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>dblink_send_query</A
> -- sends an async query to a remote database</DT
><DT
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>dblink_is_busy</A
> -- checks if connection is busy with an async query</DT
><DT
><A
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>dblink_get_result</A
> -- gets an async query result</DT
><DT
><A
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>dblink_cancel_query</A
> -- cancels any active query on the named connection</DT
><DT
><A
HREF="contrib-dblink-get-pkey.html"
>dblink_get_pkey</A
> -- returns the positions and field names of a relation's
primary key fields
</DT
><DT
><A
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>dblink_build_sql_insert</A
> -- builds an INSERT statement using a local tuple, replacing the
primary key field values with alternative supplied values
</DT
><DT
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>dblink_build_sql_delete</A
> -- builds a DELETE statement using supplied values for primary
key field values
</DT
><DT
><A
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>dblink_build_sql_update</A
> -- builds an UPDATE statement using a local tuple, replacing
the primary key field values with alternative supplied values
</DT
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><P
> <TT
CLASS="FILENAME"
>dblink</TT
> is a module which supports connections to
other <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> databases from within a database
session.
</P
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