diff --git a/src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/stmt/OracleTruncateTableStatement.java b/src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/stmt/OracleTruncateTableStatement.java
deleted file mode 100644
index ead8d2d35e..0000000000
--- a/src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/stmt/OracleTruncateTableStatement.java
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright 1999-2011 Alibaba Group Holding Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.alibaba.druid.sql.dialect.oracle.ast.stmt;
-
-import com.alibaba.druid.sql.ast.SQLStatementImpl;
-
-public class OracleTruncateTableStatement extends SQLStatementImpl {
-
-    private static final long serialVersionUID = 1L;
-
-    public OracleTruncateTableStatement(){
-
-    }
-}
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/stmt/OracleTypeDef.java b/src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/stmt/OracleTypeDef.java
deleted file mode 100644
index 750f855b28..0000000000
--- a/src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/stmt/OracleTypeDef.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright 1999-2011 Alibaba Group Holding Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.alibaba.druid.sql.dialect.oracle.ast.stmt;
-
-import com.alibaba.druid.sql.dialect.oracle.ast.OracleSQLObject;
-
-public abstract class OracleTypeDef extends OracleSQLObject {
-
-    private static final long serialVersionUID = 1L;
-
-    public OracleTypeDef(){
-
-    }
-
-    public void output(StringBuffer buf) {
-        buf.append(super.toString());
-    }
-}