diff --git a/src/modules/crud/crud.typings.d.ts b/src/modules/crud/crud.typings.d.ts
index 2f21b0c..fef47b3 100644
--- a/src/modules/crud/crud.typings.d.ts
+++ b/src/modules/crud/crud.typings.d.ts
@@ -193,7 +193,7 @@ export interface ConnectionPlugin {
 }
 
 export interface TestRequest {
-    data?: [];
+    data?: string[];
     errorCode?: string;
     errorMsg?: string;
 }
diff --git a/src/modules/pages/maintain/forms/components/form.jdbc.ts b/src/modules/pages/maintain/forms/components/form.jdbc.ts
index 1e46471..d077e3c 100644
--- a/src/modules/pages/maintain/forms/components/form.jdbc.ts
+++ b/src/modules/pages/maintain/forms/components/form.jdbc.ts
@@ -17,6 +17,8 @@ export class FormJdbc extends BI.Widget {
     oldPassword = '';
     allDatabaseTypes = getAllDatabaseTypes();
 
+    private schemas = [] as string[];
+
     testStatus: any;
     advancedSet: any;
     formUser: any;
@@ -298,14 +300,33 @@ export class FormJdbc extends BI.Widget {
                     invisible: !databaseType.hasSchema,
                     name: BI.i18nText('Dec-Dcm_Connection_Form_Pattern'),
                     forms: [{
-                        type: TextEditor,
+                        type: SingleSelectInsertCombo,
                         width: 300,
-                        allowBlank: true,
                         value: schema,
                         watermark: BI.i18nText('Dec-Dcm_Connection_Form_Pattern'),
                         ref: (_ref: any) => {
                             this.form.schema = _ref;
                         },
+                        itemsCreator: (options: {
+                            keywords?: string[],
+                            selectedValues: string[],
+                            times: number,
+                            type: number,
+                        }, callback: Function) => {
+                            let schemas = this.schemas;
+                            if (options.selectedValues && options.selectedValues.length > 0) {
+                                schemas = schemas.filter(item => item !== options.selectedValues[0]);
+                            }
+                            callback({
+                                items: schemas.map(item => {
+                                    return {
+                                        text: item,
+                                        value: item,
+                                    };
+                                }),
+                                hasNext: false,
+                            });
+                        },
                     }],
                 },
                 {
@@ -598,6 +619,9 @@ export class FormJdbc extends BI.Widget {
         this.form.url.setValue(url.replace('hostname', host).replace(':port', port ? `:${port}` : ''));
     }
 
+    public setSchemas(schemas: string[]) {
+        this.schemas = schemas;
+    }
 
     public getSubmitValue():Connection {
         const connectionData = this.options.formData.connectionData as ConnectionJDBC;
diff --git a/src/modules/pages/maintain/forms/form.ts b/src/modules/pages/maintain/forms/form.ts
index 2f7323b..73d6ed3 100644
--- a/src/modules/pages/maintain/forms/form.ts
+++ b/src/modules/pages/maintain/forms/form.ts
@@ -46,6 +46,9 @@ export class MaintainForm extends BI.Widget {
                         this.testStatus.setFail(re.errorMsg);
                     } else if (re.data) {
                         this.testStatus.setSuccess();
+                        if (re.data.length > 0) {
+                            this.form.setSchemas && this.form.setSchemas(re.data);
+                        }
                         setTimeout(() => {
                             BI.Maskers.remove(id);
                         }, 1000 * 2);