From: Kamil Andrusz <wizz@mniam.net>
To: pgsql-interfaces@postgresql.org
Subject: 'execute immediate' problem
Date: Wed, 02 Jun 2004 11:15:23 +0200
Message-ID: <8765aa5nis.fsf@shwurzbung.mniam.net> (raw)
Hello list,
I've go a litlle test program, that should transfer data from one db to
another. It's just a quick hack to check if it would work at all.
----
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <err.h>
int
main(int argc, char *argv[])
{
EXEC SQL BEGIN DECLARE SECTION;
char node_name[255];
char node_type[255];
char stmt[1024];
char ins[1024];
EXEC SQL END DECLARE SECTION;
EXEC SQL WHENEVER SQLERROR sqlprint;
EXEC SQL WHENEVER NOT FOUND continue;
EXEC SQL CONNECT TO test1 AS src_link USER test;
EXEC SQL CONNECT TO test2 AS dst_link USER test;
sprintf(stmt, "SELECT node_name, node_type FROM node ORDER BY node_type");
EXEC SQL PREPARE node_p FROM :stmt;
EXEC SQL AT src_link DECLARE node_c CURSOR FOR node_p;
EXEC SQL AT src_link OPEN node_c;
EXEC SQL WHENEVER SQLERROR sqlprint;
EXEC SQL WHENEVER NOT FOUND goto _done;
for (;;) {
EXEC SQL AT src_link FETCH node_c INTO :node_name, :node_type;
sprintf(ins, "INSERT INTO node (node_name, node_type) VALUES ('%s', '%s')",
node_name, node_type);
printf("%s;\n", ins);
EXEC SQL AT dst_link EXECUTE IMMEDIATE :ins;
}
_done:
EXEC SQL AT src_link CLOSE node_c;
EXEC SQL AT src_link FREE node_p;
EXEC SQL DISCONNECT dst_link;
EXEC SQL DISCONNECT src_link;
exit(0);
}
----
The problem is, the 'EXEC SQL AT dst_link EXECUTE IMMEDIATE :ins;'
doesn't seem to work. When I do a 'select * from node' on the test2
database it shows 0 rows. The 'debug' printf shows, that the :ins
statement is correct.
The node table in both db's have two columns, node_name and node_type.
I'm running PostgreSQL 7.3.5 on OpenBSD 3.5.
I think I'm missing something obvious. Any hints?
Regards,
Kamil Andrusz
--
It's just a matter of opinion.
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To: pgsql-interfaces@postgresql.org
Cc: wizz@mniam.net
Subject: Re: 'execute immediate' problem
In-Reply-To: <8765aa5nis.fsf@shwurzbung.mniam.net>
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