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造成开机后提示“Invalid partition table”的原因（）
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A．错误B．正确
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Which statement about the enabling of table compression in Oracle Database 11g is true?()
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电脑开机后，屏幕上出现“Invalid partition table”的提示信息，无法正常进入Windows操作系统，可能的故障原因是(14)。A．硬盘数据线连接错误B．CMOS中的硬盘类型设置参数丢失C．硬盘被烧坏D．硬盘中分区表被病毒占用
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A PL/SQL procedure queries only those columns of a redefined table that were unchanged by the online table redefinition. What happens to the PL/SQL procedure after the online table redefinition?（）A、It remains valid.B、It becomes invalid for all options of online table redefinition but automatically gets revalidated the next time it is used.C、It becomes invalid for all options of online table redefinition and is automatically recompiled during online redefinition of the table.D、It becomes invalid only if the storage parameters have been modified and it automatically gets revalidated the next time it is used.
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Which is a restriction on a list partitioned table？（）A、You cannot create global range partitioned indexes on the table. B、The optimizer will not execute partition wise joins on the table’s partitions. C、You must include at least one element in the value list of each partition of the table, even if that element is the keyword NULL. D、Partition pruning will not occur during query optimizer if a range of values is included in the query predicate.
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启动Windows 98时提示“Invalid Partition Table”如果安装了新硬盘的话，就重新分区、格式化。如果硬盘早些时候可以用，说明当前硬盘的分区遭到了破坏。如果硬盘上有重要的数据，可以用（）来恢复。
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开机后提示Invalid partition table一般是硬盘主导记录中分区表有错误，最简单的解决方法是用NDD修复，它将检查分区表中的错误，发现错误，将会询问是否愿意修改，回答YES即可修正错误，或者用备份过的分区表覆盖它也行。如果是病毒感染了分区表，再用NDD进行修复。
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You have a range-partitioned table in your database. Each partition in the table contains the sales data for a quarter. The partition related to the current quarter is modified frequently and other partitions undergo fewer data manipulations. The preferences for the table are set to their default values. You collect statistics for the table using the following command in regular intervals： SQL EXECUTE DBMS_STATS.GATHER_TABLE_STATS（’SH’，’SALES’，GRANULARITY=’GLOBAL’）； You need statistics to be collected more quickly. What can you do to achieve this？（）A、 Set DYNAMIC_SAMPLING to level 4B、 Set the STATISTICS_LEVEL parameter to BASICC、 Set the INCREMENTAL value to TRUE for the partition tableD、 Increase the value of STALE_PERCENT for the partition table
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开机后屏幕上出现“Error loading operating system”或“Missing operating system”的信息提示，造成该故障的原因一般是DOS引导记录出现错误。
考题
单选题Which statement about the enabling of table compression in Oracle Database 11g is true？（）A
Compression can be enabled at the table， tablespace， or partition level for direct loads only.B
Compression can be enabled only at the table level for both direct loads and conventional DML.C
Compression can be enabled at the table， tablespace， or partition level for conventional DML only.D
Compression can be enabled at the table， tablespace， or partition level for both direct loads and conventional DML.
考题
单选题A PL/SQL procedure queries only those columns of a redefined table that were unchanged by the online table redefinition. What happens to the PL/SQL procedure after the online table redefinition?（）A
It remains valid.B
It becomes invalid for all options of online table redefinition but automatically gets revalidated the next time it is used.C
It becomes invalid for all options of online table redefinition and is automatically recompiled during online redefinition of the table.D
It becomes invalid only if the storage parameters have been modified and it automatically gets revalidated the next time it is used.
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判断题开机后提示Invalid partition table一般是硬盘主导记录中分区表有错误，最简单的解决方法是用NDD修复，它将检查分区表中的错误，发现错误，将会询问是否愿意修改，回答YES即可修正错误，或者用备份过的分区表覆盖它也行。如果是病毒感染了分区表，再用NDD进行修复。A
对B
错
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填空题启动Windows 98时提示“Invalid Partition Table”如果安装了新硬盘的话，就重新分区、格式化。如果硬盘早些时候可以用，说明当前硬盘的分区遭到了破坏。如果硬盘上有重要的数据，可以用（）来恢复。
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判断题服务器开机后时显示器屏幕提示“Invalid Boot diskette”，意思是网络操作系统发生故障。A
对B
错
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