7.18 day01

2024-07-18 11:22:24 +08:00 · 2024-07-18 11:22:24 +08:00 · 8ccdabc9f8
commit 8ccdabc9f8
15 changed files with 301 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,35 @@
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
--- a/.idea/$PROJECT_FILE$
+++ b/.idea/$PROJECT_FILE$
@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AnalysisProjectProfileManager">
+    <option name="PROJECT_PROFILE" />
+    <option name="USE_PROJECT_LEVEL_SETTINGS" value="false" />
+    <list size="0" />
+  </component>
+  <component name="SuppressionsComponent">
+    <option name="suppComments" value="[]" />
+  </component>
+</project>
--- a/.idea/.gitignore
+++ b/.idea/.gitignore
@ -0,0 +1,8 @@
+# 默认忽略的文件
+/shelf/
+/workspace.xml
+# 基于编辑器的 HTTP 客户端请求
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
--- a/.idea/UploadStorage.xml
+++ b/.idea/UploadStorage.xml
@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="UploadStorage">
+    <option name="envList">
+      <list>
+        <EnvDTO>
+          <option name="env" value="本地" />
+        </EnvDTO>
+      </list>
+    </option>
+  </component>
+</project>
--- a/.idea/dictionaries/Admin.xml
+++ b/.idea/dictionaries/Admin.xml
@ -0,0 +1,3 @@
+<component name="ProjectDictionaryState">
+  <dictionary name="Admin" />
+</component>
--- a/.idea/encodings.xml
+++ b/.idea/encodings.xml
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" native2AsciiForPropertiesFiles="true" defaultCharsetForPropertiesFiles="UTF-8">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+    <file url="PROJECT" charset="UTF-8" />
+  </component>
+</project>
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@ -0,0 +1,5 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+  </profile>
+</component>
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectInspectionProfilesVisibleTreeState">
+    <entry key="Project Default">
+      <profile-state>
+        <expanded-state>
+          <State>
+            <id>Abstraction issuesJava</id>
+          </State>
+          <State>
+            <id>EditorConfig</id>
+          </State>
+          <State>
+            <id>Error handlingJava</id>
+          </State>
+          <State>
+            <id>General</id>
+          </State>
+          <State>
+            <id>Internationalization</id>
+          </State>
+          <State>
+            <id>JUnit</id>
+          </State>
+          <State>
+            <id>JVM languages</id>
+          </State>
+          <State>
+            <id>Java</id>
+          </State>
+          <State>
+            <id>JavaScript and TypeScript</id>
+          </State>
+          <State>
+            <id>Kotlin</id>
+          </State>
+          <State>
+            <id>PortabilityJava</id>
+          </State>
+          <State>
+            <id>Probable bugsKotlin</id>
+          </State>
+          <State>
+            <id>Properties files</id>
+          </State>
+          <State>
+            <id>ReactJavaScript and TypeScript</id>
+          </State>
+          <State>
+            <id>Test frameworksJVM languages</id>
+          </State>
+        </expanded-state>
+        <selected-state>
+          <State>
+            <id>User defined</id>
+          </State>
+        </selected-state>
+      </profile-state>
+    </entry>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+  <component name="SuppressionsComponent">
+    <option name="suppComments" value="[]" />
+  </component>
+</project>
--- a/.idea/qaplug_profiles.xml
+++ b/.idea/qaplug_profiles.xml
@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AnalysisProjectProfileManager">
+    <option name="PROJECT_PROFILE" value="Project Default" />
+    <option name="USE_PROJECT_LEVEL_SETTINGS" value="false" />
+    <scopes />
+    <profiles>
+      <profile profile_name="Project Default" version="1.0" is_locked="false" />
+    </profiles>
+    <list size="0" />
+  </component>
+</project>
--- a/.idea/setting.xml
+++ b/.idea/setting.xml
@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="arthas.idea.plugin">
+    <option name="selectProjectName" value="" />
+    <option name="redisAddress" value="" />
+    <option name="redisAuth" value="" />
+    <option name="redisCacheKey" value="" />
+  </component>
+</project>
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
--- a/pom.xml
+++ b/pom.xml
@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.bw</groupId>
+    <artifactId>day01</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>
--- a/sql/day01.sql
+++ b/sql/day01.sql
@ -0,0 +1,41 @@
+# 2.查询所有学生信息，并根据年龄进行降序排序。（10分）
+SELECT * FROM
+day01_user ORDER BY age DESC;
+
+# 3.显示姓王的学生的详细信息。（10分）
+SELECT * FROM
+day01_user 
+WHERE ename LIKE ('王%');
+
+# 4.查询工资大于5000的所有男同学的信息。（10分）
+SELECT * FROM 
+day01_user
+WHERE sal > 5000 AND sex = '男';
+
+# 5.查询班级编号为20的男同学的电话号码。（10分）
+SELECT * FROM
+day01_user
+WHERE classid = 20 AND sex = '男';
+
+# 6.查询最低工资。（10分）
+SELECT MIN(sal) FROM day01_user;
+
+# 7.查询班级为30的学生的最小年龄。（10分）
+SELECT MIN(age) FROM 
+day01_user 
+WHERE classid = 30;
+
+# 8.查询女生的最低工资。（15分）
+SELECT MIN(sal) FROM day01_user WHERE sex = '女';
+
+# 9.查询女学生中薪资最低的人的全部信息。（15分）
+SELECT * FROM 
+day01_user 
+WHERE sex = '女' 
+AND sal = (
+SELECT MIN(sal) FROM 
+day01_user 
+WHERE sex = '女'
+);
+
+
--- a/sql/day01_user.sql
+++ b/sql/day01_user.sql
@ -0,0 +1,59 @@
+/*
+ Navicat Premium Data Transfer
+
+ Source Server         : 本机
+ Source Server Type    : MySQL
+ Source Server Version : 50744
+ Source Host           : localhost:3306
+ Source Schema         : high-six-exam
+
+ Target Server Type    : MySQL
+ Target Server Version : 50744
+ File Encoding         : 65001
+
+ Date: 18/07/2024 08:52:28
+*/
+
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ----------------------------
+-- Table structure for day01_user
+-- ----------------------------
+DROP TABLE IF EXISTS `day01_user`;
+CREATE TABLE `day01_user`  (
+  `eid` int(11) NOT NULL AUTO_INCREMENT COMMENT '学生ID',
+  `ename` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '学生姓名',
+  `sex` varchar(2) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '学生性别',
+  `tel` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '学生手机号',
+  `classid` int(11) NULL DEFAULT NULL COMMENT '学生班级',
+  `age` int(11) NULL DEFAULT NULL COMMENT '学生年龄',
+  `sal` double NULL DEFAULT NULL COMMENT '学生薪资',
+  PRIMARY KEY (`eid`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 21 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of day01_user
+-- ----------------------------
+INSERT INTO `day01_user` VALUES (1, '方王韬', '男', '19800670755', 20, 29, 3059.6);
+INSERT INTO `day01_user` VALUES (2, '林詩涵', '女', '19507931194', 20, 23, 6381.17);
+INSERT INTO `day01_user` VALUES (3, '尹致远', '男', '7600451038', 20, 19, 5107.62);
+INSERT INTO `day01_user` VALUES (4, '徐璐', '女', '7691120789', 20, 27, 5307.63);
+INSERT INTO `day01_user` VALUES (5, '尹震南', '男', '14796746974', 4, 29, 6519.92);
+INSERT INTO `day01_user` VALUES (6, '范致远', '男', '1053148944', 30, 29, 2720.74);
+INSERT INTO `day01_user` VALUES (7, '贾子异', '男', '17787973788', 30, 24, 3940.03);
+INSERT INTO `day01_user` VALUES (8, '魏震南', '男', '1009556234', 30, 24, 8387.14);
+INSERT INTO `day01_user` VALUES (9, '莫子韬', '男', '7693373552', 30, 27, 9213.19);
+INSERT INTO `day01_user` VALUES (10, '严子异', '男', '14145386982', 30, 23, 2418.38);
+INSERT INTO `day01_user` VALUES (11, '熊子异', '男', '17999840481', 30, 30, 5356.33);
+INSERT INTO `day01_user` VALUES (12, '韩宇宁', '男', '2014651275', 30, 19, 8295.86);
+INSERT INTO `day01_user` VALUES (13, '陈致远', '男', '16175133202', 30, 20, 8203.2);
+INSERT INTO `day01_user` VALUES (14, '田子韬', '男', '7604233014', 30, 19, 4959.46);
+INSERT INTO `day01_user` VALUES (15, '王嘉伦', '男', '15315936551', 30, 27, 7611.77);
+INSERT INTO `day01_user` VALUES (16, '袁詩涵', '女', '18861365288', 30, 21, 2944.04);
+INSERT INTO `day01_user` VALUES (17, '姜詩涵', '女', '287949657', 30, 28, 8114.72);
+INSERT INTO `day01_user` VALUES (18, '侯云熙', '男', '210309388', 30, 22, 2190.1);
+INSERT INTO `day01_user` VALUES (19, '王震南', '男', '7559535493', 3, 26, 2724.84);
+INSERT INTO `day01_user` VALUES (20, '谭璐', '女', '17955237156', 1, 21, 4140.22);
+
+SET FOREIGN_KEY_CHECKS = 1;
--- a/理论/img.png
+++ b/理论/img.png