61. You are working in an online transaction processing (OLTP) environment. You realize that the salary for an employee, John, has been accidentally m...
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其他好文 时间:
2015-02-27 16:52:33
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464
1. Because of a power outage,instance failure has occurred. From what point in the redo log does recovery begin and where does it end?A. Current redo ...
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其他好文 时间:
2015-02-27 16:50:49
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290
1.You observe that a database performance has degraded overa period of time. While investigating the reason, you find the size ofthe database buffer c...
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其他好文 时间:
2015-02-27 16:50:11
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743
121. You want to create a new optimized database for your transactional production environment to be used by a financial application. While creating t...
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其他好文 时间:
2015-02-27 16:40:43
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288
131. Which three methods can you use to run an Automatic Database Diagnostic Monitor (ADDM) analysis over a specific time period? (Choosethree.)A. Ent...
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其他好文 时间:
2015-02-27 16:34:14
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199
131. Which view would you use to display the column names and DEFAULT valuesfor a table?A. DBA_TABLESB. DBA_COLUMNSC. USER_COLUMNSD. USER_TAB_COLUMNSA...
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其他好文 时间:
2015-02-27 16:30:24
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426
61. Evaluate the following SQL statements that are issued in the given order:CREATE TABLE emp(emp_no NUMBER(2) CONSTRAINT emp_emp_no_pk PRIMARY KEY,en...
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其他好文 时间:
2015-02-27 16:25:05
阅读次数:
465
原创作品,出自 “深蓝的blog” 博客,欢迎转载,转载时请务必注明以下出处,否则追究版权法律责任。
深蓝的blog:
delete演示:
1、查询实验数据
2、删除表数据
3、该会话下查询数据
4、回滚数据
5、回滚后,再次查看数据
题库模拟:
167、DELETE
167. Evaluate the following DELETE stat...
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数据库 时间:
2015-02-26 23:00:04
阅读次数:
222
1. You need to load information about new customers from the NEW_CUST table into the tables CUST and CUST_SPECIAL. If a new customer has a credit limi...
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其他好文 时间:
2015-02-26 18:13:10
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372
声明:原创作品,出自 “深蓝的blog” 博客,欢迎转载,转载时请务必注明出处,否则追究版权法律责任。
深蓝的blog:
枯燥的知识点介绍是漫天飞舞,我们不妨从中筛选出部分细节,带着问题来学习Oracle体系知识,这样也许印象会更深刻吧。接下来的一段日子里,本人为了通过ocp考试,将会通过这种形式,开始oracle体系、备份、调优等一系列的学习梳理与练习,以下即是一个自我的总结,...
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数据库 时间:
2015-02-25 10:21:16
阅读次数:
238