oracle查询入门练习（Oracle query entry to practice）.docVIP

下载本文档

3
0
约1.04万字
约 12页
2017-08-16 发布于河南
举报
版权申诉

oracle查询入门练习（Oracle query entry to practice）.doc

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

oracle查询入门练习（Oracle query entry to practice）

oracle查询入门练习（Oracle query entry to practice） Oracle query entry to practice Practice for SCOTT Oracle ============ query function and part of ============== The first part: 1, the use of basic query. (1) DEPT query table shows all the name of the Department. (2) EMP query table shows all employees and the annual income (monthly salary = salary + allowance), NULL, and specify the column alias annual income. (NVL (comm, 0) comm null value with 0 alternative) (3) query does not exist in all departments, employees. 2, limit the query data (1) EMP query table shows more than 2850 of the wages of the employee name and salary. (2) EMP query table shows the salary in 1500 ~ 2850 between all employees and wages. (3) EMP query table shows the code for the employees name and department code 7566. (4) EMP query table shows employees and wage sector 10 and 30 more than 1500 of the wages. (5) EMP query table shows all employees second characters A in the name of their wages. (6) EMP query table shows grants non empty all employees and subsidies. 3, sorting data (1) EMP query table shows all employees name, salary, date of employment, and sorted in ascending order of the employee name. (2) EMP query table shows May 1, 1981 to employees, jobs and employment dates in February 1, 1981, and sorted to date of employment. (3) EMP query table shows the benefit of all employees, wages and benefits, and to wage subsidies ascending and descending order. The second part: There are at least 1. lists all departments of an employee. 2. a list of all the employees salaries more than SMITH. 3. list the names of all employees and their names. 4. list the date of entry of all employees earlier than their direct superiors. 5. list the name of the Department and these employees, the Department employee list at the same time. A list of all 6. CLERK (clerk) the name and the name of the department. 7. lists a variety of positions the minimum salary, and shows the minimum salary of more than 1500 of all