fix:达梦、sqlserver 超级查询sql生成模版

ruoyi-system/src/main/java/com/ruoyi/system/service/impl/DragTableServiceImpl.java

@@ -187,7 +187,7 @@ public class DragTableServiceImpl implements IDragTableService {
                 SQL += SQL_START;
                 for (int i = 0; dragTableVo.getSearchFieldList().size() > i; i++) {
                     SQL += SQL_DM_SERVER_MIDDLE.replace("#{VAL}", dragTableVo.getSearchFieldList().get(i));
-                    SQL += dragTableVo.getSearchFieldList().size() - 1 == i ? ")" : ",\n";
+                    SQL += dragTableVo.getSearchFieldList().size() - 1 == i ? ",'')" : ",\n";
                 }
                 break;
             case "ORACLE":