diff --git a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataAnalytic.java b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataAnalytic.java
index 44433ec16d..22a8c51112 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataAnalytic.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataAnalytic.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 1999-2101 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.teradata.ast.expr;
 
 import com.alibaba.druid.sql.ast.SQLOver;
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataAnalyticWindowing.java b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataAnalyticWindowing.java
index 76c6658bef..dffc7cad5f 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataAnalyticWindowing.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataAnalyticWindowing.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 1999-2101 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.teradata.ast.expr;
 
 import com.alibaba.druid.sql.ast.SQLExpr;
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataExpr.java b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataExpr.java
index 60fe89ea34..912ce644df 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataExpr.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataExpr.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 1999-2101 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.teradata.ast.expr;
 
 import com.alibaba.druid.sql.ast.SQLExpr;
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataIntervalExpr.java b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataIntervalExpr.java
index e1128cd704..b48370f21b 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataIntervalExpr.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataIntervalExpr.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 1999-2101 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.teradata.ast.expr;
 
 import com.alibaba.druid.sql.ast.SQLExpr;
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataIntervalUnit.java b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataIntervalUnit.java
index cec3f559a5..635f36506e 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataIntervalUnit.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/expr/TeradataIntervalUnit.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 1999-2101 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.teradata.ast.expr;
 
 public enum TeradataIntervalUnit {
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/stmt/TeradataInsertStatement.java b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/stmt/TeradataInsertStatement.java
index 1b51738075..aa6cbf230e 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/stmt/TeradataInsertStatement.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/stmt/TeradataInsertStatement.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 1999-2101 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.teradata.ast.stmt;
 
 import java.util.ArrayList;
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/stmt/TeradataSelectQueryBlock.java b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/stmt/TeradataSelectQueryBlock.java
index 2296c9314c..e6f46eac35 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/stmt/TeradataSelectQueryBlock.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/teradata/ast/stmt/TeradataSelectQueryBlock.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 1999-2101 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.teradata.ast.stmt;
 
 import com.alibaba.druid.sql.SQLUtils;