小白修炼晋级中的博客目录 1.case when函数的语法和用法 (1)语法:case when......②多条件:case when (criteria1) then (name1)else (criteria2) then (name2)...[else (criteria i) then (name i)] ...else(name n)end (2).
秦岭一白的博客看看JAVA中怎么查询数据库public List getSelect(int id, String name) {// sql语句String sql = "select * from people p where p.id = ? and p.name = ?";// 获取到连接Connection conn = getCon();Prepa...