回答:以oracle為例:SELECT * FROM(SELECT A.*, ROWNUM RNFROM (SELECT rs.student_id,count(1) FROM relationship rs group by rs.student_id order by count(1) desc) AWHERE ROWNUM = 0
...和課程類 課程類 /imooc_collection_map_demo/src/com/imooc/collection/Course.java package com.imooc.collection; //課程類 public class Course { public String id; public String name; public Cour...
...AULT CHARSET=utf8; DESC `teacher`; # 創(chuàng)建課程表 DROP TABLE IF EXISTS `course`; CREATE TABLE `course`( `cid` INT UNSIGNED NOT NULL AUTO_INCREMENT , `cname` VARCHAR(50) NOT NULL , `teacher_id`...
運(yùn)行結(jié)果: 數(shù)據(jù)庫的2個(gè)表:course表 student表 ps:一定要build path導(dǎo)入數(shù)據(jù)庫用的jar包,以及在在lib文件夾中導(dǎo)入數(shù)據(jù)庫jar包 文件目錄結(jié)構(gòu): 具體代碼:index.jsp 首頁 歡迎進(jìn)入選課系統(tǒng) 歡迎進(jìn)入選課 系統(tǒng) 學(xué)生登錄 ...
運(yùn)行結(jié)果: 數(shù)據(jù)庫的2個(gè)表:course表 student表 ps:一定要build path導(dǎo)入數(shù)據(jù)庫用的jar包,以及在在lib文件夾中導(dǎo)入數(shù)據(jù)庫jar包 文件目錄結(jié)構(gòu): 具體代碼:index.jsp 首頁 歡迎進(jìn)入選課系統(tǒng) 歡迎進(jìn)入選課 系統(tǒng) 學(xué)生登錄 ...
...* ArrayList的增刪改查 * */ public class ListTest { private List coursesList; // 備選課程列表 public ListTest() { this.coursesList = new ArrayList(); } public List getCour...
...件格式所采用的是python內(nèi)置的pickle控制模塊,必須新創(chuàng)建course.txt和student.txt供程序流程讀寫能力?! ∫韵率菍?shí)例編碼
Course Schedule I There are a total of n courses you have to take, labeled from 0 to n - 1.Some courses may have prerequisites, for example to take course 0 you have to first take course 1, which is e...
...具體的實(shí)現(xiàn) /** * 課程教練類 */ public class Coach { private CourseBuilder courseBuilder; public void setCourseBuilder(CourseBuilder courseBuilder) { this.courseBuilder = courseBuilder; ...
... return .format(self.name) 一對多關(guān)系現(xiàn)在創(chuàng)建第二個(gè)映射類 Course,它對應(yīng)的數(shù)據(jù)表 course 存放課程數(shù)據(jù)。一個(gè)課程作者可以創(chuàng)建多個(gè)課程,一個(gè)課程對應(yīng)唯一的課程作者,這種關(guān)系被稱為一對多或者多對一關(guān)系,這是最常用的數(shù)據(jù)...
Course Schedule Problem There are a total of n courses you have to take, labeled from 0 to n - 1. Some courses may have prerequisites, for example to take course 0 you have to first take course 1, whi...
ChatGPT和Sora等AI大模型應(yīng)用,將AI大模型和算力需求的熱度不斷帶上新的臺階。哪里可以獲得...
大模型的訓(xùn)練用4090是不合適的,但推理(inference/serving)用4090不能說合適,...
圖示為GPU性能排行榜,我們可以看到所有GPU的原始相關(guān)性能圖表。同時(shí)根據(jù)訓(xùn)練、推理能力由高到低做了...