Help with ResultSets....

Question

I have a bit of code that gets a sql statement from a TIBCO repository.. executes it.. get's a result set and is then supposed to update a status code for each row within the result, then process the records within the result set.
So the code looks like this:
Connection conn = DBService.initConnection(Constants.QTMx_DB_URL);
Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);
if (sql != null){
rs = st.executeQuery(sql);
if (!updateStatusCodes(rs)){
throw new Exception("Failed while updating status codes");
else{
Logger.debug("Status Code Update COMPLETE!");
else{
throw new Exception("Invoice SQL query statement is null");
Logger.debug("After Polling Query");
//iterate over each deal
while (rs.next()){
Logger.debug("In result set loop - processing deals");
blah blah blah......
The issue is that the ResultSet is not being populated with records. So I write the value of sql to a log file and get this.....
select hdr.INVOICE_NUM, hdr.INVOICE_DATE, hdr.DUE_DATE, hdr.DETAIL_COUNT, hdr.SETTLEMENT_AMOUNT, hdr.SETT
LEMENT_CURR_ID, hdr.ENTITY, hdr.SAP_XREF_ID, hdr.PARTNER, hdr.INTRACOMPANY_FLAG, hdr.SETTLEMENT_TYPE_ID, hdr.PRIOR_SETTLEMENT_DOC, h
dr.PAYMENT_METHOD_CODE, hdr.INTERFACE_STATUS_CODE, hdr.SAP_DOC_ID, hdr.LASTCHANGE, hdr.RPL_CODE, hdr.ACCTMONTH, dtl.DEAL_NUM, dtl.DE
ALDATE, dtl.DEAL_TYPE, dtl.DESK, dtl.QUANTITY, dtl.UNIT, dtl.SETTLEMENT_AMOUNT, dtl.SEQ_NUM, dtl.COSTID,dtl.PRODMONTH, dtl.TAXTYPE,
dtl.PIPELINE, dtl.METER from SAPUSR.SAP_INTERFACE_HDR hdr, SAPUSR.SAP_GMS_INTERFACE_DTL dtl where rtrim(hdr.SOURCE_SYS_ID)='GMS' and
(rtrim(hdr.INTERFACE_STATUS_CODE) = 'RE' or rtrim(hdr.INTERFACE_STATUS_CODE) is null) and hdr.SOURCE_SYS_ID=dtl.SOURCE_SYS_ID and h
dr.INVOICE_NUM=dtl.INVOICE_NUM order by dtl.INVOICE_NUM
So I cut and copy it into my handy dandy SQL Application and run it...
BAM! 97 Records returned....
What am I missing here. Also .... rs is a module wide object which is not declared in this method, it is just used in this method.

Answer 1

I hate to state the obvious but if you aren't getting any records back then the problem likely lies in the information following the "WHERE" portion of the SQL.
So to start with to remove complications, I would suggest reducing the size of your SQL statment to be either "select *" or
"select hdr.SOURCE_SYS_ID, hdr.INTERFACE_STATUS_CODE, dtl.SOURCE_SYS_ID, hdr.INVOICE_NUM, dtl.INVOICE_NUM"
as those seem to be the only critical columns in your table for your query.
Then remove the order by portion of the statement.
Then re-run the query. If that still fails to yield any records, then remove some of the joins in your statement or the usage of the rtrim statements to establish equation with some other variable/constant.
I realize this is an obvious avenue to proceed along. But I can't think of any reason a SQL query would work in one case and not in another on the same database.
One other thing you could look at is the portion of the statement where you state "is null". I'm not sure but I seem to remember something about some incompatibility with that (there is a work around if I am remembering correctly) and using JDBC.
One last theory is that it is the use of aliases:
SAPUSR.SAP_INTERFACE_HDR hdr
(i.e. these may be the cause of problems)
Hope this helps,
Tim