diff --git a/src/main/java/edu/situ/stlserver/dao/CoachMapper.java b/src/main/java/edu/situ/stlserver/dao/CoachMapper.java
index b4534c4..3257898 100644
--- a/src/main/java/edu/situ/stlserver/dao/CoachMapper.java
+++ b/src/main/java/edu/situ/stlserver/dao/CoachMapper.java
@@ -11,16 +11,16 @@ import java.util.List;
 @Mapper
 public interface CoachMapper {
     // 查询全部
-    @Select(value = "SELECT * FROM coach")
+    @Select(value = "SELECT * FROM coaches")
     List<Coach> selectAll();
 
     @Select(value = {
             "<script>",
-                "SELECT * FROM `coach`",
+                "SELECT * FROM `coaches`",
                 "<where>",
-                    "<if test=\"name != null AND name != ''\"> AND `name` LIKE CONCAT('%', #{name}, '%')</if>",
-                    "<if test=\"sex != null AND sex != 0\"> AND `sex` = #{sex}</if>",
-                    "<if test=\"quitDate != null AND quitDate != 1\">",
+                    "<if test=\"name != null and name != ''\"> AND `name` LIKE CONCAT('%', #{name}, '%')</if>",
+                    "<if test=\"sex != null and sex != 0\"> AND `sex` = #{sex}</if>",
+                    "<if test=\"quitDate != null and quitDate != 1\">",
                         "<choose>",
                             "<when test=\"quitDate == 2\"> AND quit_date IS NULL</when>",
                             "<when test=\"quitDate == 3\"> AND quit_date IS NOT NULL</when>",