diff --git a/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesBase.java b/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesBase.java
index 4b92e7e..80c65e5 100644
--- a/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesBase.java
+++ b/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesBase.java
@@ -63,8 +63,11 @@ public abstract class SequencesBase {
             }
             InputStream inputStream = new ByteArrayInputStream(sql.getBytes(StandardCharsets.UTF_8));
             ResourceDatabasePopulator databasePopulator = new ResourceDatabasePopulator(new InputStreamResource(inputStream));
-            if (Objects.equals(dbType.getSeries(), DbType.PostgreSQL.getSeries()) && fileName.endsWith("function.sql")) {
-                // 函数文件只能有一个函数，并且函数文件不要通过;分隔
+            if (Objects.equals(dbType.getSeries(), DbType.DM_DBMS.getSeries()) && fileName.endsWith("trigger.sql")) {
+                // 触发器文件不要通过;分隔，整个文件一起执行
+                databasePopulator.setSeparator(ScriptUtils.EOF_STATEMENT_SEPARATOR);
+            } else if (Objects.equals(dbType.getSeries(), DbType.PostgreSQL.getSeries()) && fileName.endsWith("function.sql")) {
+                // 函数文件不要通过;分隔，整个文件一起执行
                 databasePopulator.setSeparator(ScriptUtils.EOF_STATEMENT_SEPARATOR);
             }
             databasePopulator.execute(dataSource);
diff --git a/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesDaoImpl.java b/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesDaoImpl.java
index 07af529..7293a2e 100644
--- a/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesDaoImpl.java
+++ b/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesDaoImpl.java
@@ -58,7 +58,9 @@ public class SequencesDaoImpl extends SequencesBase implements SequencesDao {
     @Override
     public void createTable() {
         this.createTableByFile("create_table_sequences.sql");
-        if (Objects.equals(dbType.getSeries(), DbType.PostgreSQL.getSeries())) {
+        if (Objects.equals(dbType.getSeries(), DbType.DM_DBMS.getSeries())) {
+            this.createTableByFile("create_table_sequences_trigger.sql");
+        } else if (Objects.equals(dbType.getSeries(), DbType.PostgreSQL.getSeries())) {
             this.createTableByFile("create_table_sequences_function.sql");
             this.createTableByFile("create_table_sequences_trigger.sql");
         }
diff --git a/src/main/resources/dm/create_table_sequences_trigger.sql b/src/main/resources/dm/create_table_sequences_trigger.sql
new file mode 100644
index 0000000..25f0b7d
--- /dev/null
+++ b/src/main/resources/dm/create_table_sequences_trigger.sql
@@ -0,0 +1,8 @@
+CREATE OR REPLACE TRIGGER "SEQUENCES_UPDATE_TIME"
+    BEFORE UPDATE
+    ON "sequences"
+    referencing OLD ROW AS "OLD" NEW ROW AS "NEW"
+    FOR EACH ROW
+BEGIN
+    :NEW."UPDATE_TIME" := CURRENT_TIMESTAMP;
+END;
\ No newline at end of file
diff --git a/src/main/resources/mysql/create_table_sequences.sql b/src/main/resources/mysql/create_table_sequences.sql
index ff8c9a4..392d8b2 100644
--- a/src/main/resources/mysql/create_table_sequences.sql
+++ b/src/main/resources/mysql/create_table_sequences.sql
@@ -3,6 +3,6 @@ CREATE TABLE IF NOT EXISTS `sequences`
     `key`  VARCHAR(64) NOT NULL COMMENT '序号英文名称',
     `type` VARCHAR(64) NOT NULL COMMENT '序号类型',
     `seq`  BIGINT(20)  NOT NULL COMMENT '已使用到的序号',
-    `update_time` DATETIME NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP COMMENT '最后使用时间',
+    `update_time` DATETIME NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '最后使用时间',
     PRIMARY KEY (`key`, `type`)
 ) COMMENT '当前序号表';
\ No newline at end of file