2021-11-17

websocket 应用

IDEA小技巧-同时编辑多行
https://segmentfault.com/a/1190000020779372?utm_source=tag-newest

oracle的 listagg() WITHIN GROUP () 行转列函数的使用
https://blog.youkuaiyun.com/sinat_36257389/article/details/81004843

java list 合并
https://www.cnblogs.com/Luouy/p/6482733.html

java set
https://blog.youkuaiyun.com/u011402596/article/details/38523443/

表结构设计