Subject UNION prevents all records from being pulled to the results
Author SoftTech
Greetings All,

The SQL that follows pulls these results: (These results are missing 5
records from the second select of the union)
FEE_CODE AMT_EARNED_AGENCY SHOW_IN_PMT_DIST_PLAN FEE_CATEGORY
CCO2 76 1 0
SVC 1.17 1 0
SVC 30 1 0

This is the SQL statement:
SELECT FC.FEE_CODE,
COALESCE(PCF.CASE_FEE_AMT_EARNED_AGENCY_1 +
PCF.CASE_FEE_AMT_EARNED_AGENCY_2, 0) AS AMT_EARNED_AGENCY,
FC.SHOW_IN_PMT_DIST_PLAN,
FC.FEE_CATEGORY
FROM PMT_CASE_FEE PCF
JOIN PMT_CASE PC ON PC.ACCT_ID = PCF.ACCT_ID
AND PC.CASE_ID = PCF.CASE_ID
AND PC.PMT_ID = PCF.PMT_ID
AND PC.PMT_NO = PCF.PMT_NO
JOIN CASE_FEE_HISTORY CFH ON CFH.CASE_FEE_ID =
PCF.CASE_FEE_ID
AND CFH.PMT_ID = PCF.PMT_ID
JOIN CASE_FEE CF ON CF.CASE_FEE_ID = PCF.CASE_FEE_ID
JOIN FEE_CODE FC ON FC.FEE_ID = CF.FEE_ID
WHERE PCF.PMT_ID = :iPmtID
AND PCF.PMT_NO = :iPmtNo
AND PCF.ACCT_ID = :iAcctID
AND PCF.CASE_ID = :iCaseID

UNION

SELECT FC.FEE_CODE,
COALESCE(PDF.DEBT_FEE_AMT_EARNED_AGENCY_1 +
PDF.DEBT_FEE_AMT_EARNED_AGENCY_2, 0) AS AMT_EARNED_AGENCY,
FC.SHOW_IN_PMT_DIST_PLAN,
FC.FEE_CATEGORY
FROM PMT_DEBT_FEE PDF
JOIN PMT_DEBT PD ON PD.ACCT_ID = PDF.ACCT_ID
AND PD.DEBT_NO = PDF.DEBT_NO
AND PD.PMT_ID = PDF.PMT_ID
AND PD.PMT_NO = PDF.PMT_NO
JOIN DEBT_FEE_HISTORY DFH ON DFH.DEBT_FEE_ID =
PDF.DEBT_FEE_ID
AND DFH.PMT_ID = PDF.PMT_ID
JOIN DEBT_FEE DF ON DF.DEBT_FEE_ID = PDF.DEBT_FEE_ID
JOIN FEE_CODE FC ON FC.FEE_ID = DF.FEE_ID
JOIN DEBT D ON D.ACCT_ID = PDF.ACCT_ID
AND D.DEBT_NO = PDF.DEBT_NO
WHERE PDF.PMT_ID = :iPmtID
AND PDF.PMT_NO = :iPmtNo
AND D.ACCT_ID = :iAcctID
AND D.CASE_ID = :iCaseID

If I execute just the first select in the union it pulls these results
FEE_CODE AMT_EARNED_AGENCY SHOW_IN_PMT_DIST_PLAN FEE_CATEGORY
CCO2 76 1 0

If I execute the second select in the union it pulls these results
FEE_CODE AMT_EARNED_AGENCY SHOW_IN_PMT_DIST_PLAN FEE_CATEGORY
SVC 30 1 0
SVC 30 1 0
SVC 30 1 0
SVC 30 1 0
SVC 30 1 0
SVC 1.17 1 0
SVC 30 1 0

Again, executing the select statements separately results in the correct
records being returned, executing both selects with the union omits 5
records.

Using Firebird 1.5.3

Any ideas?

Thanks,
Mike