diff --git a/src/modules/app.provider.ts b/src/modules/app.provider.ts
index f3e9a60..791d2be 100644
--- a/src/modules/app.provider.ts
+++ b/src/modules/app.provider.ts
@@ -1,10 +1,11 @@
 import { CONSTANT_PLUGIN_TYPES } from './app.constant';
+import { DATA_BASE_TYPES } from '@constants/constant';
 
-BI.provider('dec.connection.provider.datebase', function() {
+BI.provider('dec.connection.provider.datebase', function () {
     this.resolves = {};
 
     // 原service中resolveUrlInfo方法
-    function jdbcResolve (url: string) {
+    function jdbcResolve(url: string) {
         if (BI.isNull(url)) return {};
         const oracleUlr = url.match(/^jdbc:(oracle):(thin:([0-9a-zA-Z/]*)?@|thin:([0-9a-zA-Z/]*)?@\/\/|\/\/|)([0-9a-zA-Z_\\.-]+)(:([0-9|port]+))?(:|\/)([^]+)(.*)/i);
         if (oracleUlr) {
@@ -68,14 +69,35 @@ BI.provider('dec.connection.provider.datebase', function() {
         };
     }
 
+    function coverBaseDatabase(config) {
+        const baseDataBase = DATA_BASE_TYPES.find(item => item.text === config.text);
+        if (BI.isNotNull(baseDataBase)) {
+            // 覆盖基础配置
+            Object.assign(baseDataBase, config);
+
+            return true;
+        }
+
+        return false;
+    }
+
     this.registerDatabaseType = (config: any) => {
+        if (coverBaseDatabase(config)) return;
+
         BI.config(CONSTANT_PLUGIN_TYPES, connections => BI.concat(connections, config));
     };
 
     this.registerJdbcDatabase = (config: any, resolve?: Function) => {
-        BI.config(CONSTANT_PLUGIN_TYPES, connections => BI.concat(connections, { ...config, type: 'jdbc' }));
+        config = {
+            ...config,
+            type: 'jdbc',
+        };
 
         BI.isFunction(resolve) && (this.resolves[config.databaseType] = resolve);
+
+        if (coverBaseDatabase(config)) return;
+
+        BI.config(CONSTANT_PLUGIN_TYPES, connections => BI.concat(connections, config));
     };
 
     this.$get = () => BI.inherit(BI.OB, {
diff --git a/src/modules/pages/maintain/forms/components/form.jdbc.ts b/src/modules/pages/maintain/forms/components/form.jdbc.ts
index 277f1a7..90ea1b2 100644
--- a/src/modules/pages/maintain/forms/components/form.jdbc.ts
+++ b/src/modules/pages/maintain/forms/components/form.jdbc.ts
@@ -1001,7 +1001,8 @@ export class FormJdbc extends BI.Widget {
                 {
                     el: {
                         type: BI.VerticalLayout.xtype,
-                        bgap: vgap,
+                        vgap: vgap,
+                        top: -15,
                         invisible: true,
                         ref: (_ref: VerticalLayout) => {
                             this.advancedSet = _ref;