diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/DataSourceServiceImpl.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/DataSourceServiceImpl.java
index ab0c6bbe9fa1..844363c06413 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/DataSourceServiceImpl.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/DataSourceServiceImpl.java
@@ -666,8 +666,9 @@ public Map<String, Object> getDatabases(Integer datasourceId) {
             }
             if (dataSource.getType() == DbType.POSTGRESQL) {
                 rs = connection.createStatement().executeQuery(Constants.DATABASES_QUERY_PG);
+            } else {
+                rs = connection.createStatement().executeQuery(Constants.DATABASES_QUERY);
             }
-            rs = connection.createStatement().executeQuery(Constants.DATABASES_QUERY);
             tableList = new ArrayList<>();
             while (rs.next()) {
                 String name = rs.getString(1);