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Postgres inserts null value for parameterized statement

From: kishoramballi <kishoramballi(at)gmail(dot)com>
To: pgsql-odbc(at)postgresql(dot)org
Subject: Postgres inserts null value for parameterized statement
Date: 2009-10-14 18:31:35
Message-ID: 25896531.post@talk.nabble.com (view raw or flat)
Thread:
Lists: pgsql-odbc
Hi, 

I have created table using following sql statement through psql tool in test
database using
create table t1(f1 int);
table is created.
Now I am using an odbc script to insert 5 records. But it inserts 6 records
NULL value being the first one inserted.
the code snippet is as below.

...
...
retVal = SQLDriverConnect(dbHdl, NULL, (SQLCHAR*)"psql",
SQL_NTS,outstr, sizeof(outstr), &outstrlen, SQL_DRIVER_NOPROMPT);
SQLSetConnectAttr(dbHdl, SQL_ATTR_AUTOCOMMIT, SQL_AUTOCOMMIT_OFF, 0);
int f1 = 0;
ret = SQLPrepare(stmt,(unsigned char*)"INSERT INTO T1 VALUES(?);" ,
SQL_NTS);
ret = SQLBindParameter (stmt, 1, SQL_PARAM_INPUT, SQL_C_SLONG,
SQL_INTEGER,0,0,&f1,0,NULL);
int i,count=0;
// EXECUTE THE STATEMENT
for(i=0;i<5;i++)
{
f1++;
ret = SQLExecute(stmt);
ret = SQLTransact(env,dbc,SQL_COMMIT);
count++;
}
...
...

I am using unixodb driver and my odbc.ini file reads as follows.

$ vi ~/.odbc.ini

[psql]
Description = CP resources db
Driver = postgres
Trace = No
TraceFile = sql.log
Database = test
Servername = localhost
UserName = kishoramballi
Password = kishoramballi
Port = 5432
Protocol = 6.4
ReadOnly = No
RowVersioning = No
ShowSystemTables = No
ShowOidColumn = No
FakeOidIndex = No
ConnSettings =
ExtraSysTablePrefixes =

$ vi /etc/odbcinst.ini

[ODBC]
Trace = yes
TraceFile = /tmp/sql.log

[postgres]
Driver = /usr/lib/libodbcpsql.so
Setup = /usr/lib/libodbcpsqlS.so
Description = Connector Driver DSN
SERVER = localhost
Database = test
ReadOnly = No

[PostgreSQL]
Description = PostgreSQL ODBC driver for Linux
Driver = /usr/lib/libodbcpsql.so.1
Setup = /usr/lib/libodbcpsqlS.so.1
ExtraSysTablePrefixes =
UsageCount = 1


Am I missing something or have I added some thing more than required for
this problem to occur.

Please help
thanks
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