From 358d95b54c579fca3a391669f3852f64732646e8 Mon Sep 17 00:00:00 2001
From: 86191 <2160251938@qq.com>
Date: Thu, 18 Jul 2024 20:56:03 +0800
Subject: [PATCH] =?UTF-8?q?=E6=97=A5=E8=80=831?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .gitignore                          | 38 +++++++++++++++++++++++
 .idea/.gitignore                    |  8 +++++
 .idea/encodings.xml                 |  8 +++++
 .idea/misc.xml                      | 15 +++++++++
 pom.xml                             | 17 ++++++++++
 sql/7-18考试SQL测试.sql             | 48 +++++++++++++++++++++++++++++
 src/main/java/org/example/Main.java |  7 +++++
 7 files changed, 141 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 .idea/.gitignore
 create mode 100644 .idea/encodings.xml
 create mode 100644 .idea/misc.xml
 create mode 100644 pom.xml
 create mode 100644 sql/7-18考试SQL测试.sql
 create mode 100644 src/main/java/org/example/Main.java

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ac288aa
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,38 @@
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.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
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..35410ca
--- /dev/null
+++ 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
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000..63574ec
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" 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>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..13cdae7
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,15 @@
+<?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>
+    <option name="workspaceImportForciblyTurnedOn" value="true" />
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..277b42c
--- /dev/null
+++ 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>org.example</groupId>
+    <artifactId>demo1</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>
diff --git a/sql/7-18考试SQL测试.sql b/sql/7-18考试SQL测试.sql
new file mode 100644
index 0000000..ef4c592
--- /dev/null
+++ b/sql/7-18考试SQL测试.sql
@@ -0,0 +1,48 @@
+CREATE TABLE tb_student
+(
+	student_id INT(11) PRIMARY KEY auto_increment,
+	student_name VARCHAR(30),
+	student_sex VARCHAR(20),
+	student_phone VARCHAR(30),
+	student_clazz_id INT(11),
+	student_age INT(11),
+	student_salary DECIMAL(10,2)
+)
+
+DROP TABLE tb_student
+
+INSERT INTO tb_student(student_name,student_sex,student_phone,student_clazz_id,student_age,student_salary) 
+VALUES('王铭','男','12345679812',20,36,5200.00);
+
+INSERT INTO tb_student(student_name,student_sex,student_phone,student_clazz_id,student_age,student_salary) 
+VALUES('王虎','男','19423568794',30,26,1314.00);
+
+INSERT INTO tb_student(student_name,student_sex,student_phone,student_clazz_id,student_age,student_salary) 
+VALUES('小红','女','18754632389',30,18,3600.00);
+
+INSERT INTO tb_student(student_name,student_sex,student_phone,student_clazz_id,student_age,student_salary) 
+VALUES('曼萨','女','13649876354',52,20,7777.00);
+
+INSERT INTO tb_student(student_name,student_sex,student_phone,student_clazz_id,student_age,student_salary) 
+VALUES('钰萍','女','12345679812',77,22,9999.00);
+
+
+
+
+
+-- 查询所有学生信息，并根据年龄进行降序排序
+SELECT * FROM tb_student ORDER BY student_age DESC
+-- 显示姓王的学生的详细信息
+SELECT * FROM tb_student WHERE student_name LIKE '王%'
+-- 查询工资大于5000的所有男同学的信息
+SELECT * FROM tb_student WHERE student_salary > 5000 AND student_sex = '男'
+-- 查询班级编号为20的男同学的电话号码。
+SELECT student_phone FROM tb_student WHERE student_clazz_id = 20 AND student_sex = '男'
+-- 查询最低工资
+SELECT MIN(student_salary) AS min_salary FROM tb_student
+-- 查询班级为30的学生的最小年龄
+SELECT MIN(student_age) FROM tb_student WHERE student_clazz_id = 30
+-- 查询女生的最低工资
+SELECT MIN(student_salary) AS min_salary FROM tb_student WHERE student_sex = '女'
+-- 查询女学生中薪资最低的人的全部信息
+SELECT * FROM tb_student WHERE student_salary = (SELECT MIN(student_salary) FROM tb_student WHERE student_sex = '女')
\ No newline at end of file
diff --git a/src/main/java/org/example/Main.java b/src/main/java/org/example/Main.java
new file mode 100644
index 0000000..407f157
--- /dev/null
+++ b/src/main/java/org/example/Main.java
@@ -0,0 +1,7 @@
+package org.example;
+
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello world!");
+    }
+}
\ No newline at end of file