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工作中用到过的sql,权当分享给对sql头疼的银儿
select t.*, t.rowid from t_dept_type t 部门select t.*, t.rowid from t_company t 公司select t.*, t.rowid from t_employees t 员工 select a.departmentid,a.user ...
分类:数据库   时间:2016-06-15 01:36:12    阅读次数:234
TimesTen 数据库复制学习:5. 设定复制网络传输的return service
return service指在复制源和目标之间的同步模式,可以是no return(异步),return receipt(准同步)和return twosafe(全同步)。 本文的描述对于active standby和classic replication都适用。脚本准备$ cat insert1.sql INSERT INTO employees VALUES ( 202,...
分类:数据库   时间:2016-06-06 01:16:56    阅读次数:248
Oracle中的索引详解(转载)
一、 ROWID的概念 存储了row在数据文件中的具体位置:64位 编码的数据,A-Z, a-z, 0-9, +, 和 /, row在数据块中的存储方式 SELECT ROWID, last_name FROM hr.employees WHERE department_id = 20; 比 如:O ...
分类:数据库   时间:2016-05-28 23:01:57    阅读次数:242
【Leetcode】Employees Earning More Than Their Managers
题目链接:https://leetcode.com/problems/employees-earning-more-than-their-managers/题目: The Employee table holds all employees including their managers. Every employee has an Id, and there is also a column...
分类:其他好文   时间:2016-05-18 19:13:02    阅读次数:163
Oracle 'no privileges on tablespace 表空间名称' 问题解决
create user bryan identified by bryan; grant create session to bryan; grant create table to bryan; connect bryan/bryan; create table bryan_employees ( ...
分类:数据库   时间:2016-05-13 17:16:02    阅读次数:265
AYITACM2016省赛第三周 L - Anniversary party(树形dp)
Description There is going to be a party to celebrate the 80-th Anniversary of the Ural State University. The University has a hierarchical structure of employees. It means that the superviso...
分类:其他好文   时间:2016-05-07 10:36:33    阅读次数:237
MySql 中Join操作的用法
SQL标准中的Join的类型: 首先,设置表employees和department的数据为: 1、inner join … on操作类型 内连接inner join是基于连接谓词将两张表(如A和B)的列组合在一起的,产生新的结果表。 例子:SELECT * FROM employees a inner join department b ON a.department_id = b.de...
分类:数据库   时间:2016-04-27 01:49:18    阅读次数:332
Postgresql流水帐(第七天):Trigger
创建一个函数 创建一个trigger, 将表和函数绑定 ALTER TRIGGER trigger_name ON table_name RENAME TO new_name; ALTER TRIGGER last_name_changes ON employees RENAME TO log_la... ...
分类:数据库   时间:2016-04-24 12:27:04    阅读次数:180
Part 15 AngularJS ng init directive
The ng-init directive allows you to evaluate an expression in the current scope. In the following example, the ng-init directive initializes employees ...
分类:Web程序   时间:2016-04-24 00:58:33    阅读次数:226
Topcoder SRM 687 (Div 2) 250.Quorum
In one organization they have n different committees. The organization has a very large number of employees. Each employee is a member of each committee. Each committee has a quorum: the smallest number of members that have to be present to have an officia...
分类:其他好文   时间:2016-04-15 02:17:37    阅读次数:215
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