diff --git a/src/main/java/com/lz/modules/performance/controller/ChartController.java b/src/main/java/com/lz/modules/performance/controller/ChartController.java
index 16d2a884..12a4fe6b 100644
--- a/src/main/java/com/lz/modules/performance/controller/ChartController.java
+++ b/src/main/java/com/lz/modules/performance/controller/ChartController.java
@@ -46,7 +46,7 @@ public class ChartController extends AbstractController{
     @ApiOperation("获取绩效报表统计")
     @ApiResponses({@ApiResponse(code = 200,message = "成功",response = ChartStatisticalRes.class)})
     public R chartResult(@RequestParam(required = false) @ApiParam(name = "startId",value = "考核周期标识id") Long startId){
-        List<ChartStatisticalRes> chartStatisticalRes = null;
+        List<ChartStatisticalRes> chartStatisticalRes;
         try {
             Long userId = getUserId();
             chartStatisticalRes = chartResultService.chartReport(startId,userId);
diff --git a/src/main/resources/mapper/app/ResultRecordMapper.xml b/src/main/resources/mapper/app/ResultRecordMapper.xml
index 3d71425c..696487bf 100644
--- a/src/main/resources/mapper/app/ResultRecordMapper.xml
+++ b/src/main/resources/mapper/app/ResultRecordMapper.xml
@@ -379,7 +379,7 @@
     </select>
 
     <select id="countNumByScoreLevel" resultType="com.lz.modules.performance.res.ChartStatistical">
-        SELECT count(score_level) num,score_level,case score_level WHEN 0 THEN '无等级' ELSE score_level END as 'desc' from lz_result_record where is_delete=0
+        SELECT count(1) num,score_level,case score_level is null WHEN true THEN '无等级' ELSE score_level END as 'desc' from lz_result_record where is_delete=0
         and start_id =#{startId}
         <if test="evaluationIds !=null and evaluationIds.size()!=0">
             and evaluation_id in (