diff --git a/packages/tools/src/SqlDumper.ts b/packages/tools/src/SqlDumper.ts
index d4de0c399..38161bda9 100644
--- a/packages/tools/src/SqlDumper.ts
+++ b/packages/tools/src/SqlDumper.ts
@@ -199,14 +199,8 @@ export class SqlDumper implements AlterProcessor {
 
   selectScopeIdentity(table: TableInfo) {}
 
-  columnDefinition(column: ColumnInfo, { includeDefault = true, includeNullable = true, includeCollate = true } = {}) {
-    if (column.computedExpression) {
-      this.put('^as %s', column.computedExpression);
-      if (column.isPersisted) this.put(' ^persisted');
-      return;
-    }
-
-    const type = column.dataType || this.dialect.fallbackDataType;
+  columnType(dataType: string) {
+    const type = dataType || this.dialect.fallbackDataType;
     const typeWithValues = type.match(/([^(]+)(\(.+[^)]\))/);
 
     if (typeWithValues?.length) {
@@ -217,6 +211,17 @@ export class SqlDumper implements AlterProcessor {
       this.putRaw(SqlDumper.convertKeywordCase(type));
     }
 
+  }
+
+  columnDefinition(column: ColumnInfo, { includeDefault = true, includeNullable = true, includeCollate = true } = {}) {
+    if (column.computedExpression) {
+      this.put('^as %s', column.computedExpression);
+      if (column.isPersisted) this.put(' ^persisted');
+      return;
+    }
+
+    this.columnType(column.dataType);
+
     if (column.autoIncrement) {
       this.autoIncrement();
     }
diff --git a/plugins/dbgate-plugin-oracle/src/frontend/Dumper.js b/plugins/dbgate-plugin-oracle/src/frontend/Dumper.js
index 9c8a2f9f6..74b3f0ed4 100644
--- a/plugins/dbgate-plugin-oracle/src/frontend/Dumper.js
+++ b/plugins/dbgate-plugin-oracle/src/frontend/Dumper.js
@@ -15,6 +15,15 @@ class Dumper extends SqlDumper {
   // oracle uses implicit transactions
   beginTransaction() {}
 
+  columnDefinition(col, options) {
+    if (col.autoIncrement) {
+      super.columnType(col.dataType);
+      this.put(' ^generated ^by ^default ^on ^null ^as ^identity');
+      return;
+    }
+    super.columnDefinition(col, options);
+  }
+
   // /** @param type {import('dbgate-types').TransformType} */
   // transform(type, dumpExpr) {
   //   switch (type) {