SQL Union only returns partial data

[rrenda]

Good Evening,

I've created a union statement which has 2 subqueries,in Oracle 11 sql developer. It compiles successfully, but when I looked at the data, I noticed that the only information being returned is from the first subquery. I've been troubleshooting it for the past 2 days and am completely out of options. Can someone take a look and point me in the right direction. Thanks

SELECT "ACACTIVITY"."ACTIVITY_GRP",
"ACACTIVITY"."ACTIVITY",
"ACACTIVITY"."BALANCE_AMOUNT",
"ACACTGRP"."DESCRIPTION",
"ACACTIVITY"."DESCRIPTION",
"ACACCTCAT"."DESCRIPTION",
"ACACCTCAT"."ACCT_CATEGORY",
"ACBUDDTL"."BALANCE",
"ACTRANS"."ACCOUNT" AS ACTRANSACCT,
"ACTRANS"."ACCT_UNIT" AS ACTRANSACCTUNIT,
"ACTRANS"."SUB_ACCOUNT" AS ACTRANSSUBACT,
"ACTRANS"."POSTING_DATE" AS ACTRANSPOSTDT,
"ACTRANS"."R_SYSTEM" as ACTRANSYS,
"ACTRANS"."REFERENCE" as ACTRANSREF,
"ACTRANS"."DESCRIPTION" as ACTRANSDESC,
"ACTRANS"."TRAN_AMOUNT" as ACTRANSAMT,
"ACTRANS"."UNITS_AMOUNT" as ACTRANSUNIT,
"ACTRANS"."ACT_CURRENCY" as ACTRANCURR,
null as col19,
null as col20,
null as col21
FROM ((("PROD"."ACACTIVITY" "ACACTIVITY" INNER JOIN "PROD"."ACACTGRP" "ACACTGRP" ON "ACACTIVITY"."ACTIVITY_GRP"="ACACTGRP"."ACTIVITY_GRP")
INNER JOIN "PROD"."ACTRANS" "ACTRANS" ON "ACACTIVITY"."ACTIVITY"="ACTRANS"."ACTIVITY")
INNER JOIN "PROD"."ACBUDDTL" "ACBUDDTL" ON ("ACACTIVITY"."ACTIVITY"="ACBUDDTL"."ACTIVITY") AND ("ACACTIVITY"."ACTIVITY_GRP"="ACBUDDTL"."ACTIVITY_GRP"))
INNER JOIN "PROD"."ACACCTCAT" "ACACCTCAT" ON "ACTRANS"."ACCT_CATEGORY"="ACACCTCAT"."ACCT_CATEGORY"
Union
SELECT "ACACTIVITY"."ACTIVITY_GRP",
"ACACTIVITY"."ACTIVITY",
"ACACTIVITY"."BALANCE_AMOUNT",
"ACACTGRP"."DESCRIPTION",
"ACACTIVITY"."DESCRIPTION",
"ACACCTCAT"."DESCRIPTION",
"ACACCTCAT"."ACCT_CATEGORY",
"ACBUDDTL"."BALANCE",
null,
null,
null,
null,
null,
null,
null,
null,
null,
null,
"ACCOMMITX"."ACTIVITY",
"ACCOMMITX"."ACCT_CATEGORY",
"ACCOMMITX"."TRAN_AMOUNT"
FROM ((("PROD"."ACACTIVITY" "ACACTIVITY" LEFT OUTER JOIN "PROD"."ACCOMMITX" "ACCOMMITX" ON "ACACTIVITY"."ACTIVITY"="ACCOMMITX"."ACTIVITY")
INNER JOIN "PROD"."ACACTGRP" "ACACTGRP" ON "ACACTIVITY"."ACTIVITY_GRP"="ACACTGRP"."ACTIVITY_GRP")
INNER JOIN "PROD"."ACBUDDTL" "ACBUDDTL" ON ("ACACTIVITY"."ACTIVITY"="ACBUDDTL"."ACTIVITY") AND ("ACACTIVITY"."ACTIVITY_GRP"="ACBUDDTL"."ACTIVITY_GRP"))
INNER JOIN "PROD"."ACACCTCAT" "ACACCTCAT" ON "ACCOMMITX"."ACCT_CATEGORY"="ACACCTCAT"."ACCT_CATEGORY