admin – 第 4 页 – DevOps 应用集

Mave/git issue fixed 例子

Posted on 18 11 月, 201918 11 月, 2019 by admin

当 maven compile code时, 下载很多的resource files时, 怎样略过如下

mvn clean compile -o install

开发免不了进行代码review，当遇到git提交出现 ‘Changes not staged for commit’ 问题的解决方法
Cases are
1) when pull from remote branch1
2) Modify and submit, then push to remote branch2
3) Remote branch2 updated some files, and local branch modified
4) Cant submit and push to remote branch2 now

Solution steps:
1) Check out new local branch from remote branch2
2) Modify new local branch and submit & push to remote branch2
3) After merge to remote branch1(e.g. master branch), remove old local branch and checkout from remote branch
4) Remove the local branch which pushes to remote branch2

用java JPA进行多表join

Posted on 14 11 月, 201914 11 月, 2019 by admin

例如我们有如下多表查询

select A.id, A.name, B.name2, C.name2 from A,B,C where A.id=B.bid and B.name3 = C.id

我们用Join连接 JPA tables

//    Root rootpath   Entity A,B,C  in B has relasionship B.name3 = C     Join b_path = rootpath.join("id");  
Join c_path = b_path.join("name3");

Java 小知识

Posted on 14 11 月, 201914 11 月, 2019 by admin

1. Get client timezone

Calendar.getInstance().getTimeZone()

2. JPA sql 输出

//queryType:TypedQuery

HANA使用几点总结

Posted on 13 11 月, 2019 by admin

1. 客户端工具

DBeaver

2. 集成执行多sql语句结构


-- when you need to run more commands.e.g insert/update etc
DO

BEGIN

DECLARE    var1 number;

DECLARE    var2 number;

--sql commands 

COMMIT;

END;

3. 数据库连接 sql 语句

CONNECT DBName PASSWORD dbpassword

4. 用dummy 使用sequence

select example_seq_name from dummy

DevOps下使用ExpressVPN

Posted on 13 11 月, 2019 by admin

当面临block时，为什么使用ExpressVPN有以下原因
1.稳定连接和快速上传/下载
例如对docker image操作

2.google问题
一些准确而好的解决方法不言而喻了

3.好的技术支持和trouble shooting
良好的解释和帮助和持续的更新软件解决issue
例如https://www.expressvpn.com/support/troubleshooting/china-status/

当然很多人可能认为价格可能比较贵，这取决于效率和时间的平衡