diff --git a/sqlglot/generators/exasol.py b/sqlglot/generators/exasol.py
index 5806f62934..640f8a570c 100644
--- a/sqlglot/generators/exasol.py
+++ b/sqlglot/generators/exasol.py
@@ -349,7 +349,7 @@ def datatype_sql(self, expression: exp.DataType) -> str:
         exp.DayOfWeek: lambda self, e: f"CAST(TO_CHAR({self.sql(e, 'this')}, 'D') AS INTEGER)",
         exp.DatetimeTrunc: timestamptrunc_sql(),
         exp.GroupConcat: lambda self, e: groupconcat_sql(
-            self, e, func_name="LISTAGG", within_group=True
+            self, e, func_name="LISTAGG", within_group=True, on_overflow=True
         ),
         # https://docs.exasol.com/db/latest/sql_references/functions/alphabeticallistfunctions/edit_distance.htm#EDIT_DISTANCE
         exp.Levenshtein: unsupported_args("ins_cost", "del_cost", "sub_cost", "max_dist")(
diff --git a/sqlglot/parsers/exasol.py b/sqlglot/parsers/exasol.py
index 0d21560352..9dd504e561 100644
--- a/sqlglot/parsers/exasol.py
+++ b/sqlglot/parsers/exasol.py
@@ -118,9 +118,10 @@ class ExasolParser(parser.Parser):
 
     FUNCTION_PARSERS = {
         **parser.Parser.FUNCTION_PARSERS,
-        # https://docs.exasol.com/db/latest/sql_references/functions/alphabeticallistfunctions/listagg.htm
         # https://docs.exasol.com/db/latest/sql_references/functions/alphabeticallistfunctions/group_concat.htm
-        **dict.fromkeys(("GROUP_CONCAT", "LISTAGG"), lambda self: self._parse_group_concat()),
+        "GROUP_CONCAT": lambda self: self._parse_group_concat(),
+        # https://docs.exasol.com/db/latest/sql_references/functions/alphabeticallistfunctions/listagg.htm
+        "LISTAGG": lambda self: self._parse_string_agg(),
         # https://docs.exasol.com/db/latest/sql_references/functions/alphabeticallistfunctions/json_value.htm
         "JSON_VALUE": lambda self: self._parse_json_value(),
         # https://docs.exasol.com/db/latest/sql_references/functions/alphabeticallistfunctions/json_extract.htm
diff --git a/tests/dialects/test_exasol.py b/tests/dialects/test_exasol.py
index 1404e1a3ca..1afc474639 100644
--- a/tests/dialects/test_exasol.py
+++ b/tests/dialects/test_exasol.py
@@ -334,6 +334,25 @@ def test_stringFunctions(self):
                 "databricks": "LISTAGG(DISTINCT x, ',') WITHIN GROUP (ORDER BY y DESC)",
             },
         )
+        # The second LISTAGG argument is the separator, not part of the value
+        # (matching Oracle/Snowflake/Trino/DuckDB), not a GROUP_CONCAT-style concat.
+        self.validate_identity("SELECT LISTAGG(x, ',') WITHIN GROUP (ORDER BY y) FROM t")
+        self.validate_all(
+            "SELECT LISTAGG(x, ',') WITHIN GROUP (ORDER BY y) FROM t",
+            read={
+                "exasol": "SELECT LISTAGG(x, ',') WITHIN GROUP (ORDER BY y) FROM t",
+                "oracle": "SELECT LISTAGG(x, ',') WITHIN GROUP (ORDER BY y) FROM t",
+                "snowflake": "SELECT LISTAGG(x, ',') WITHIN GROUP (ORDER BY y) FROM t",
+            },
+        )
+        # Routing LISTAGG through STRING_AGG also preserves the ON OVERFLOW clause.
+        self.validate_identity("LISTAGG(x, ',' ON OVERFLOW ERROR) WITHIN GROUP (ORDER BY y)")
+        self.validate_identity(
+            "LISTAGG(x, ',' ON OVERFLOW TRUNCATE '...' WITH COUNT) WITHIN GROUP (ORDER BY y)"
+        )
+        self.validate_identity(
+            "LISTAGG(x, ',' ON OVERFLOW TRUNCATE '...' WITHOUT COUNT) WITHIN GROUP (ORDER BY y)"
+        )
         self.validate_all(
             "EDIT_DISTANCE(col1, col2)",
             read={