Ingres prepared statement error

Question

Hi there,
I 'm encountering a very strange problem with a prepared statement and ingres.
String strSQL = "select first 50 date_part('year', dtrans_date) as year, ccalled_place as place, "  +
"count(*) as calls, " +
"sum(nduration/60.0) as duration " +
"from phone " +
"where date_part('year', dtrans_date) = ? and cDest_type='C' " +
"group by date_part('year', dtrans_date), ccalled_place " +
"order by date_part('year', dtrans_date), calls desc";
PreparedStatement ps = conn.prepareStatement(strSQL);          
ps.setInt(1, 2000);
rs = ps.executeQuery();It throws the exception:
ca.gcf.util.SqlEx: An internal error prevents further processing of this query.
Associated error messages which provide more detailed information about the problem can be found in the error log, II_CONFIG:errlog.log
     at ca.gcf.jdbc.DrvObj.readError(DrvObj.java:773)
     at ca.gcf.jdbc.DrvObj.readResults(DrvObj.java:629)
     at ca.gcf.jdbc.DrvPrep.<init>(DrvPrep.java:137)
     at ca.gcf.jdbc.DrvConn.getPrepStmt(DrvConn.java:786)
     at ca.gcf.jdbc.JdbcPrep.<init>(JdbcPrep.java:364)
     at ca.gcf.jdbc.JdbcConn.createPrep(JdbcConn.java:1550)
     at ca.gcf.jdbc.JdbcConn.prepareStatement(JdbcConn.java:1380)
     at TestIngresDB.query(TestIngresDB.java:37)
     at TestIngresDB.<init>(TestIngresDB.java:9)
     at TestIngresDB.main(TestIngresDB.java:55)This is exactly at the line:
ps = conn.prepareStatement(strSQL);Checking Ingres' error log:
FREEFALL: 32867             , 12f678e0]: Thu Dec  2 07:01:57 2004 E_SC0207_UNEXPECTED_ERROR    Facility returned an undocumented error.
FREEFALL: 32867             , 12f678e0]: ULE_FORMAT: Couldn't look up message 0 (reason: ER error 10902)
E_CL0902_ER_NOT_FOUND   No text found for message identifier
FREEFALL: 32867             , 12f678e0]: Thu Dec  2 07:01:57 2004 E_SC0215_PSF_ERROR   Error reHowever, other prepared statements like this work fine, e.g.:
String sqlStr = "SELECT * FROM Stock WHERE Item_Number = ?";
PreparedStatement pstmt = con.prepareStatement(query);
pstmt.setInt(1, 2);
ResultSet rs = pstmt.executeQuery();Sorry if this posting is not appropriate here, but I really don't know if this has something to do with JDBC or Ingres driver itself. Note that the query runs perfectly ok when run from Ingres VisualDBA.
Thanks,
John.

Answer 1

Your prepared statement looks like
select first 50 date_part('year', dtrans_date) as year, ccalled_place as place, count(*) as calls, sum(nduration/60.0) as duration from phone where date_part('year', dtrans_date) = ? and cDest_type='C' group by date_part('year', dtrans_date), ccalled_place order by date_part('year', dtrans_date), calls desc
I am not sure what this "first 50" is for?
***Annie***