248.You want the ability to recovery any time within the last seven days and therefore you configured therecovery window retention policy using the command:RMAN> CONFIGURE RETENTION POLICY TO RECO

Oracle OCP 11G 053（601-712）答案解析目录　601　602http://blog.csdn.net/rlhua/article/details/12423809　603http://blog.csdn.net/rlhua/article/details/13260893

Oracle OCP 11G 053（1-200）答案解析目录　1http://blog.csdn.net/rlhua/article/details/16369867　2http://blog.csdn.net/rlhua/article/details/16527169　3http://blog.c

1、了解数据完整性 使用下列完整性约束条件可强制对输入的列值设置限制。• NOT NULL：默认情况下，表中的所有列均允许使用空值。单词null表示没有值。NOT NULL约束条件要求表列必须包含非空值。例如，可以通过定义NOT NULL约束条件来要求在EMPLOYEES表的每一行的LAST_NAME列中输入值。alter table employees modify last

407.Which of the following is a potential performance tuning recommendation from the SQL AccessAdvisor?A. Create new indexes.B. Modify existing indexes.C. Implement partitioning on a nonpartit

111.Which three statements are true regarding persistent lightweight jobs? (Choose three.)A. Persistent lightweight jobs modify several tables in the data dictionary to generate a lot of redo.B. T

传说的OCM考试环境：操作系统版本：Enterprise-R5-U4-Server-i386-dvd数据库版本：10.2.0.2.0gridcontrol版本：10.2.0.1.11.在vbox中新建一个虚拟机，如下图：光驱选择：Enterprise-R5-U4-Server-i386-dvd.iso网络可选择桥接网络（我这里是无线连接互联网，故本机的IP地址为

185.A shoot-out has erupted between your MS development teams using .NET and your Linuxdevelopment teams using Java. Knowing that your database is in danger, which command would you useto back up

1  查看swap 空间大小(总计)：     # free -m          默认单位为k, -m 单位为M　　               total       used       free     shared    buffers     cached　　Mem:           377        180        197          0     

Oracle 12C  在 Oracle Linux 6.5 64Bit 安装手册，step byhttp://download.csdn.net/detail/rlhua/7689365