diff --git a/infra/common/src/main/java/org/apache/shardingsphere/infra/datanode/DataNode.java b/infra/common/src/main/java/org/apache/shardingsphere/infra/datanode/DataNode.java
index a524dcc9c0159..d88f3db799895 100644
--- a/infra/common/src/main/java/org/apache/shardingsphere/infra/datanode/DataNode.java
+++ b/infra/common/src/main/java/org/apache/shardingsphere/infra/datanode/DataNode.java
@@ -110,7 +110,7 @@ private boolean isActualDataNodesIncludedDataSourceInstance(final String actualD
      */
     public String format(final DatabaseType databaseType) {
         DialectDatabaseMetaData dialectDatabaseMetaData = new DatabaseTypeRegistry(databaseType).getDialectDatabaseMetaData();
-        return dialectDatabaseMetaData.getDefaultSchema().isPresent() && schemaName != null ? dataSourceName + DELIMITER + schemaName + DELIMITER + tableName : dataSourceName + DELIMITER + tableName;
+        return dialectDatabaseMetaData.getDefaultSchema().isPresent() && null != schemaName ? dataSourceName + DELIMITER + schemaName + DELIMITER + tableName : dataSourceName + DELIMITER + tableName;
     }
     
     @Override