CREATE TABLE employees_demo( employee_id NUMBER(6), first_name VARCHAR2(20), last_name VARCHAR2(25)CONSTRAINT emp_last_name_nn_demo NOT NULL, email VA...
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数据库 时间:
2015-06-27 06:22:16
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135
Oracle grouping和rollup简单测试SQL> select department_id,sum(salary) from employees where department_id in(10,30,90,100) group by department_id order by de...
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数据库 时间:
2015-06-25 17:21:28
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128
From: Doug Stainbrook, Global Technical Business Development To: Edge Answers Subject: Solid Edge ST7 Maintenance Pack 8 Released Date: 06/23/2015 Distribution: Siemens PLM Software employees: Yes ...
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其他好文 时间:
2015-06-24 11:11:31
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295
Department Top Three SalariesTheEmployeetable holds all employees. Every employee has an Id, and there is also a column for the department Id.+----+--...
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数据库 时间:
2015-06-24 00:32:49
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139
select * from emp; create synonym emp_ny for emp; create public synonym pub_emp_ny for employees;--创建公有同义词 DROP SYNONYM EMP_NY;--删除同义词 DROP PUBLIC SYNONYM PUB_EMP_NY;--删除公有同义词 查...
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数据库 时间:
2015-06-23 16:02:29
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131
员工信息:姓名,性别,电话,邮件存储在文件中能够通过姓名主要查询,也可以通过电话,邮件查询员工信息能够更改员工信息能够添加员工信息能够删除员工信息#coding:UTF-8
importsys
f_file=‘employees.txt‘
f=file(f_file)
employee_info={}
forlineinf.readlines():
line=li..
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其他好文 时间:
2015-06-22 17:58:57
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123
Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid “inside jobs” where employees collaborate with gamblers...
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系统相关 时间:
2015-06-16 09:26:09
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160
开始: create?trigger?biufer_employees_department_id before?insert?or?update?of?department_id?on?employees referencing?old?as?old_value?new?as?new_value for?each?row when?(new_...
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数据库 时间:
2015-06-11 21:20:36
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146
1、转载地址:http://www.cnblogs.com/knowledgesea/archive/2012/11/16/2772547.html2、日期的处理 row.CreateCell(0, CellType.NUMERIC).SetCellValue(employees[i].InDate...
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其他好文 时间:
2015-06-11 18:31:49
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128
创建包含 JSON 语法的 JavaScript 字符串:var txt = '{ "employees" : [' +'{ "firstName":"John" , "lastName":"Doe" },' +'{ "firstName":"Anna" , "lastName":"Smith" }...
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其他好文 时间:
2015-06-11 06:55:48
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136