diff --git a/README.md b/README.md
index 35276f4..6a0d754 100644
--- a/README.md
+++ b/README.md
@@ -126,6 +126,10 @@ res = checkEquality()
 
 ### Changelog
 
+
+##### V 0.2.7
+- Normalize String unequality: ...<>..., ...!=..., ...NOT LIKE... --> NOT...LIKE...
+
 ##### V 0.2.6
 - Fixed bug in checkKeywords: if keyword was present in one query and not in the other, the comparison was not performed correctly.
 
diff --git a/setup.py b/setup.py
index fc8a8f2..71c1edd 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
 
 setup(
     name='sql_testing_tools',
-    version='0.2.6',
+    version='0.2.7',
     packages=find_packages(),
     install_requires=[
         'sqlparse>=0.5.1',
diff --git a/sql_testing_tools/TokenProcessing.py b/sql_testing_tools/TokenProcessing.py
index b77c61a..3703291 100644
--- a/sql_testing_tools/TokenProcessing.py
+++ b/sql_testing_tools/TokenProcessing.py
@@ -143,6 +143,11 @@ def _condition(token, alias_map, baseDict: dict):
     left = _identifier(left, alias_map, baseDict)
     right = _identifier(right, alias_map, baseDict)
 
+    if operator.value in ("!=", "<>"):
+        return f"NOT {left} LIKE {right}"
+    if operator.value in ("NOT LIKE"):
+        return f"NOT {left} LIKE {right}"
+
     if flipAllowed and left.lower() >= right.lower():
         left, right = right, left
         if operator.value == ">":
diff --git a/sql_testing_tools/tests/NormalizeQuery_test.py b/sql_testing_tools/tests/NormalizeQuery_test.py
index 625ce1a..b695d9b 100644
--- a/sql_testing_tools/tests/NormalizeQuery_test.py
+++ b/sql_testing_tools/tests/NormalizeQuery_test.py
@@ -175,3 +175,11 @@ def test_a22_GroupIsolated(self):
 
         if res == "":
             self.fail("Different grouping not recognized")
+
+    def test_a23_not_equal(self):
+        nr = '23'
+        self.helperEqual(nr)
+
+    def test_a24_not_equal(self):
+        nr = '24'
+        self.helperEqual(nr)
diff --git a/sql_testing_tools/tests/v1/a23.sql b/sql_testing_tools/tests/v1/a23.sql
new file mode 100644
index 0000000..6a1ae69
--- /dev/null
+++ b/sql_testing_tools/tests/v1/a23.sql
@@ -0,0 +1,3 @@
+SELECT name, einwohner_m, einwohner_w 
+FROM Gemeinde 
+WHERE name != 'München'
diff --git a/sql_testing_tools/tests/v1/a24.sql b/sql_testing_tools/tests/v1/a24.sql
new file mode 100644
index 0000000..b22b73a
--- /dev/null
+++ b/sql_testing_tools/tests/v1/a24.sql
@@ -0,0 +1,3 @@
+SELECT name, einwohner_m, einwohner_w 
+FROM Gemeinde 
+WHERE name <> 'München'
diff --git a/sql_testing_tools/tests/v2/a23.sql b/sql_testing_tools/tests/v2/a23.sql
new file mode 100644
index 0000000..70f9b5a
--- /dev/null
+++ b/sql_testing_tools/tests/v2/a23.sql
@@ -0,0 +1,3 @@
+SELECT name, einwohner_m, einwohner_w 
+FROM Gemeinde 
+WHERE NOT name LIKE 'München'
diff --git a/sql_testing_tools/tests/v2/a24.sql b/sql_testing_tools/tests/v2/a24.sql
new file mode 100644
index 0000000..9545111
--- /dev/null
+++ b/sql_testing_tools/tests/v2/a24.sql
@@ -0,0 +1,3 @@
+SELECT name, einwohner_m, einwohner_w 
+FROM Gemeinde 
+WHERE name NOT LIKE 'München'