diff --git a/backend/services/browser_service.go b/backend/services/browser_service.go
index d75919f..9d26af9 100644
--- a/backend/services/browser_service.go
+++ b/backend/services/browser_service.go
@@ -87,7 +87,18 @@ func (b *browserService) Stop() {
 func (b *browserService) OpenConnection(name string) (resp types.JSResp) {
 	// get connection config
 	selConn := Connection().getConnection(name)
-	item, err := b.getRedisClient(name, selConn.LastDB)
+	// correct last database index
+	lastDB := selConn.LastDB
+	if selConn.DBFilterType == "show" && !sliceutil.Contains(selConn.DBFilterList, lastDB) {
+		lastDB = selConn.DBFilterList[0]
+	} else if selConn.DBFilterType == "hide" && sliceutil.Contains(selConn.DBFilterList, lastDB) {
+		lastDB = selConn.DBFilterList[0]
+	}
+	if lastDB != selConn.LastDB {
+		Connection().SaveLastDB(name, lastDB)
+	}
+
+	item, err := b.getRedisClient(name, lastDB)
 	if err != nil {
 		resp.Msg = err.Error()
 		return
diff --git a/frontend/src/components/sidebar/BrowserPane.vue b/frontend/src/components/sidebar/BrowserPane.vue
index c6560d7..5bb61fc 100644
--- a/frontend/src/components/sidebar/BrowserPane.vue
+++ b/frontend/src/components/sidebar/BrowserPane.vue
@@ -152,6 +152,10 @@ const onDisconnect = () => {
 }
 
 const handleSelectDB = async (db) => {
+    if (db === props.db) {
+        return
+    }
+
     try {
         loading.value = true
         browserStore.setKeyFilter(props.server, {})
diff --git a/frontend/src/components/sidebar/BrowserTree.vue b/frontend/src/components/sidebar/BrowserTree.vue
index 1789853..ad853ed 100644
--- a/frontend/src/components/sidebar/BrowserTree.vue
+++ b/frontend/src/components/sidebar/BrowserTree.vue
@@ -295,7 +295,7 @@ const onUpdateSelectedKeys = (keys, options) => {
             }
         }
         // default is load blank key to display server status
-        tabStore.openBlank(props.server)
+        tabStore.openBlank(props.server, props.db)
     } finally {
         tabStore.setSelectedKeys(props.server, keys)
     }
diff --git a/frontend/src/components/sidebar/ConnectionTree.vue b/frontend/src/components/sidebar/ConnectionTree.vue
index c6b217f..4aa8a46 100644
--- a/frontend/src/components/sidebar/ConnectionTree.vue
+++ b/frontend/src/components/sidebar/ConnectionTree.vue
@@ -49,13 +49,6 @@ const contextMenuParam = reactive({
     currentNode: null,
 })
 
-const renderIcon = (icon) => {
-    return () => {
-        return h(NIcon, null, {
-            default: () => h(icon),
-        })
-    }
-}
 const menuOptions = {
     [ConnectionType.Group]: ({ opened }) => [
         {
diff --git a/frontend/src/stores/tab.js b/frontend/src/stores/tab.js
index 8120564..88b359b 100644
--- a/frontend/src/stores/tab.js
+++ b/frontend/src/stores/tab.js
@@ -151,7 +151,7 @@ const useTabStore = defineStore('tab', {
         },
 
         openBlank(server) {
-            this.upsertTab({ server, db: 0 })
+            this.upsertTab({ server })
         },
 
         /**
@@ -194,7 +194,7 @@ const useTabStore = defineStore('tab', {
                 // tab.title = db !== undefined ? `${server}/db${db}` : `${server}`
                 tab.title = server
                 tab.server = server
-                tab.db = db
+                tab.db = db == null ? tab.db : db
                 tab.type = type
                 tab.ttl = ttl
                 tab.key = key