diff --git a/lib/core/settings.py b/lib/core/settings.py
index 09ae92e9d..7c21b1d89 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -18,7 +18,7 @@ from lib.core.enums import OS
 from thirdparty.six import unichr as _unichr
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.4.10.22"
+VERSION = "1.4.10.23"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/lib/techniques/union/use.py b/lib/techniques/union/use.py
index 3539cb806..20856c3e1 100644
--- a/lib/techniques/union/use.py
+++ b/lib/techniques/union/use.py
@@ -248,11 +248,15 @@ def unionUse(expression, unpack=True, dump=False):
     # Set kb.partRun in case the engine is called from the API
     kb.partRun = getPartRun(alias=False) if conf.api else None
 
-    if Backend.isDbms(DBMS.MYSQL) and expressionFields:
+    if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.ORACLE) and expressionFields:
         match = re.search(r"SELECT\s*(.+?)\bFROM", expression, re.I)
-        if match:
+        if match and not (Backend.isDbms(DBMS.ORACLE) and FROM_DUMMY_TABLE[DBMS.ORACLE] in expression):
             kb.jsonAggMode = True
-            _ = expression.replace(expressionFields, "CONCAT('%s',JSON_ARRAYAGG(CONCAT_WS('%s',%s)),'%s')" % (kb.chars.start, kb.chars.delimiter, expressionFields, kb.chars.stop), 1)
+            if Backend.isDbms(DBMS.MYSQL):
+                _ = expression.replace(expressionFields, "CONCAT('%s',JSON_ARRAYAGG(CONCAT_WS('%s',%s)),'%s')" % (kb.chars.start, kb.chars.delimiter, expressionFields, kb.chars.stop), 1)
+            else:
+                _ = expression.replace(expressionFields, "'%s'||JSON_ARRAYAGG(%s)||'%s'" % (kb.chars.start, ("||'%s'||" % kb.chars.delimiter).join(expressionFieldsList), kb.chars.stop), 1)
+                _ = re.sub(r"(?i)\s*ORDER BY ROWNUM", "", _)
             output = _oneShotUnionUse(_, False)
             value = parseUnionPage(output)
             kb.jsonAggMode = False