▍1. SYS
J2EE编写的网上心理测试系统,包括答题算分等。mysql数据库(J2EE online psychological test preparation system, including the answer operator classification. mysql database)
说明: 波士顿大学教学数据库simpledb3.2.(2019版)。 进行了整理,可以本地和远程服务运行。 simpledb以前的版本并没完全支持btree功能,而且3.2版加了test测试。(boston unversity database study simpledb3.2)
mysql-connector 5.1.32版本。。。。。。。(mysql-connector-java-5.1.32.jar)
说明: mysql-connector 5.1.32版本。。。。。。。(mysql-connector-java-5.1.32.jar)
说明: 每组不超过4人,每人从TPC-H中选择至少三个查询进行执行,并进行性能调整。同组人员所选择的查询不能相同。各查询均必须包含:两个以上的表连接操作,其包含至少一个聚集函数。 每位同学的该作业均放在一个命名如“姓名-学号-专业-作业1”的目录中 用尽能想到的所有技术方法,使得选定的查询的某些性能指标尽可能的差 用尽能想到的所有技术方法,使得选定的查询的某些性能指标尽可能的好(Each group has no more than 4 people. Each person selects at least three queries from TPC-H to perform and performs performance adjustment. The queries selected by the same group can not be the same. Each query must contain more than two table join operations, which contain at least one aggregation function. Each student's homework is placed in a directory named "name student number professional operation 1". Using all the technical methods that can be thought of, make certain performance indicators of selected queries as poor as possible. Use all the technical methods that you can think of, and make certain performance indicators of selected queries as good as possible.)
数据库ppt,主要是关于分布式数据库的内容,设计到mongodb(database PPT of ditributed databaseSystem with mongodb)
记事本程序源码主要涉及的技术点就是SQLite,源码不大注释得体,并且附带项目报告一份。是安卓菜鸟拿来练手的绝好程序。日记的数据主要记录在本地的SQLite数据库中,程序里面有个日志搜索功能,不过没用模糊查询。(Notepad program source code is mainly involved in the technical point is SQLite, the source code is not well commented, and comes with a project report. The program is under the vast Android rookie. Diary of the data is mainly recorded in the local SQLite , the program which has a log search function, but did not use the fuzzy query.)
Mathmtical and Computer and relation between them ..
开发软件名称:宾馆客房管理系统 开发软件单位:………… 直接对象 :***宾馆 开发软件售出对象:酒店宾馆经营者
说明: 通过面向对象的对象-关系映射持久化技术,将一对多以及多对多的数据保存到数据库中并提供查询修改等功能。(Through Object-Oriented Object- Relational Mapping Persistence technology, one-to-many and many-to-many data is saved to the database and to provide features such as query modification.)