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【POJ 2104】K-th Number
DescriptionYou are working for Macrohard company in data structures department. After failing your previous task about key insertion you were asked to...
分类:其他好文   时间:2015-04-02 20:50:23    阅读次数:126
Oracle数据库的上机作业
select department_name,city,count(*)from departments d, employees e, locations lwhere e.department_id=d.department_id and l.location_id=d.location_id....
分类:数据库   时间:2015-04-01 19:33:06    阅读次数:233
Hibernate迫切左外连接和迫切内连接
?迫切左外连接:?LEFT JOIN FETCH 关键字表示迫切左外连接检索策略.–list() 方法返回的集合中存放实体对象的引用, 每个 Department 对象关联的 Employee 集合都被初始化, 存放所有关联的 Employee 的实体对象.–查询结果中可能会包含重复元素, 可以通过...
分类:Web程序   时间:2015-03-31 23:54:56    阅读次数:250
SQL递归查询(with cte as)
with cte as( select Id,Pid,DeptName,0 as lvl from Department where Id = 2 union all select d.Id,d.Pid,d.DeptName,lvl+1 from cte c inner jo...
分类:数据库   时间:2015-03-31 12:13:02    阅读次数:184
lambda建树方法
List totalItems = (List)B_Department.Instance.Get_DepartmentList(slr); Action SetChildren = null; //封装一个方法(递归)不断读取树的分支 ...
分类:其他好文   时间:2015-03-20 12:41:54    阅读次数:144
HDU-1171 Big Event in HDU
Big Event in HDUProblem DescriptionNowadays, we all know that Computer College is the biggest department in HDU. But, maybe you don't know that Comput...
分类:其他好文   时间:2015-03-17 17:52:06    阅读次数:150
数据库连接查询
--部门表 createtable department(idnumberprimarykey,namevarchar2(30)); --员工表 createtable employee( idnumberprimarykey, namevarchar2(30)notnull, salary num...
分类:数据库   时间:2015-03-17 12:09:34    阅读次数:189
uva 357 Let Me Count The Ways (DP)
uva 357 Let Me Count The Ways After making a purchase at a large department store, Mel's change was 17 cents. He received 1 dime, 1 nickel, and 2 pennies. Later that day, he was shopping at a c...
分类:其他好文   时间:2015-03-15 16:59:14    阅读次数:118
Hibernate二级缓存以及HQL(三)
Hibernate检索方式 1:Hibernate 提供了以下检索对象的方式 1、导航对象图检索方式:在程序中获得持久的实体对象,通过对象关联,获得相关的实体对象。比如:session.get(Department.class,1); dept.getEmps() 2、OID检索方式:session...
分类:Web程序   时间:2015-03-15 00:40:46    阅读次数:241
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