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Online index rebuild functionality has been extended to include which four index structures？（）
- A、Bitmap indexes.
- B、Reverse key indexes.
- C、Function-based indexes.
- D、Key-compressed indexes on regular tables.
- E、Key-compressed indexes on IOT （including secondary indexes）
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更多 “Online index rebuild functionality has been extended to include which four index structures？（）A、Bitmap indexes.B、Reverse key indexes.C、Function-based indexes.D、Key-compressed indexes on regular tables.E、Key-compressed indexes on IOT （including secondary indexes）” 相关考题
考题
Your are the DBA supporting an Oracle 11g Release 2 database and wish to move a table containing several DATE, CHAR, VARCHAR2, and NUMBER data types, and the table’s indexes, to another tablespace.The table does not have a primary key and is used by an OLTP application.Which technique will move the table and indexes while maintaining the highest level of availability to the application?（）A. Oracle Data Pump.B. An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD to move the indexes.C. An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD ONLINE to move the indexes.D. Online Table Redefinition.E. Edition-Based Table Redefinition.
考题
当需要重建某个索引ix_customername,可以使用()方式。
A.ALTER INDEX ix_customername REBUILDB.ALTER INDEX ix_customername BUILDC.UPDATE INDEX ix_customername BUILDD.UPDATE INDEX ix_customername REBUILD
考题
While designing the database for one of your online transaction processing （OLTP） applications， you want to achieve the following： a） high availability of data b） faster primary key access to the table data c） compact storage for the table Which type of tables would you use to achieve these objectives？（） A、heap tablesB、object tablesC、partitioned tablesD、index-organized tables （IOTs）
考题
下列属于：eq（index）与：nth-child（index）的区别的有（）。A、：eq（index）只匹配一个元素，而：nth-child（index）将为每一个符合条件的父元素匹配子元素B、：eq（index）的index从0开始，而：nth-child（index）的index从1开始C、：eq（index）的index从1开始，而：nth-child（index）的index从0开始D、：eq（index）匹配多个元素，而：nth-child（index）将为每一个符合条件的父元素匹配子元素
考题
You moved the index EMP_NO_INDX from one tablespace to another and then issued the following command to rebuild the index EMP_NO_INDX： SQL ALTER INDEX EMP_NO_INDX REBUILD ONLINE； Which table allows the users to access the EMP_NO_INDX index while performing the rebuild operation？（） A、 Index-organized tableB、 Mapping TableC、 Clustered TableD、 Journal Table
考题
You executed the following procedure to collect statistics regarding an index： SQLANALYZE INDEX EMP_ID VALIDATE STRUCTURE； Which view will you use to determine whether you need to rebuild the index or not？（） A、 INDEX_STATSB、 DBA_INDEXESC、 DBA_IND_COLUMNSD、 V$OBJECT_USAGE
考题
Users in your production database complain that they are getting the following error message while trying to insert rows into the ORDERS table： ERROR at line 1： ORA-01654： unable to extend index USERS.ORDERS_IND by 8 in tablespace INDEXES.While investigating， you find that the INDEXES tablespace has run out of space and there is no more free space on the disk where the data files are available. Which two actions could you perform to overcome this error without affecting the queries that are currently being executed？（）A、 Drop and re-create the inbox.B、 Coalesce the ORDERS_IND index.C、 Coalesce the INDEXES tablespace.D、 Drop and re-create the ORDERS table.E、 Rebuild the index online and move it to another tablespace.
考题
为了监视索引的空间使用效率，可以首先分析该索引的结构，使用（）语句，然后查询INDEX_STATE视图。A、SELECT INDEX … VALIDATE STRUCTUREB、ANALYZE INDEX … VALIDATE STRUCTUREC、UPDATE INDEX … VALIDATE STRUCTURED、REBUILD INDEX … VALIDATE STRUCTURE
考题
Users in your production database complain that they are getting the following error message while trying to insert rows into the ORDERS table： ERROR at line 1： ORA/x7f01654： unable to extend index USERS.ORDERS_IND by 8 in tablespace INDEXES While investigating， you find that the INDEXES tablespace has run out of space and there is no more free space on the disk where the data files are available. Which two actions could you perform to overcome this error without affecting the queries that are currently being executed？（）A、drop and recreate the indexB、coalesce the ORDERS_IND indexC、coalesce the INDEXES tablespaceD、drop and recreate the ORDERS tableE、rebuild the index online and move it to another tablespace
考题
Users complain SQL statements using a particular index fail. Using DBVERIFY， you find that two separate blocks in the index have become corrupt. The database data files for user data and index are very large. What is the least disruptive recover strategy available in Oracle9i？（）A、Rebuild the index using the online option. B、Take the individual data file offline (not the whole tablespace), restore and recover the data file from backup with RMAN, then set the data file online again. C、Without setting the individual data file offline, use RMAN with Block Media Recovery to restore and recover only those blocks. D、Take the individual data file (not the whole tablespace) offline, use RMAN with Block Media Recovery to restore and recover only those blocks, then set the data file online again.
考题
单选题While designing the database for one of your online transaction processing （OLTP） applications， you want to achieve the following： a） high availability of data b） faster primary key access to the table data c） compact storage for the table Which type of tables would you use to achieve these objectives？（）A
heap tablesB
object tablesC
partitioned tablesD
index-organized tables （IOTs）
考题
单选题An index-organized table （IOT） called SPARSE has had many records deleted. Which command reorganizes the IOT so that the empty space is removed， while minimizing the impact for users？（）A
EXPORT with TABLES and IMPORT with the INDEX and IGNORE options.B
ALTER TABLE … COALESCE ；C
ALTER INDEX …REBUILD ONLINE；D
CREATE TABLE …AS SELECT_ONLINE；
考题
单选题Your are the DBA supporting an Oracle 11g Release 2 database and wish to move a table containing several DATE, CHAR, VARCHAR2, and NUMBER data types, and the table’s indexes, to another tablespace. The table does not have a primary key and is used by an OLTP application. Which technique will move the table and indexes while maintaining the highest level of availability to the application?（）A
Oracle Data Pump.B
An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD to move the indexes.C
An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD ONLINE to move the indexes.D
Online Table Redefinition.E
Edition-Based Table Redefinition.
考题
单选题You executed the following procedure to collect statistics regarding an index： SQLANALYZE INDEX EMP_ID VALIDATE STRUCTURE； Which view will you use to determine whether you need to rebuild the index or not？（）A
INDEX_STATSB
DBA_INDEXESC
DBA_IND_COLUMNSD
V$OBJECT_USAGE
考题
多选题In which scenarios would you rebuild an index？（）Awhen you need to disable the index usageBwhen you need to change storage optionsCwhen you need to enable index monitoringDwhen you need to move the index to another tablespace
考题
多选题Users in your production database complain that they are getting the following error message while trying to insert rows into the ORDERS table： ERROR at line 1： ORA-01654： unable to extend index USERS.ORDERS_IND by 8 in tablespace INDEXES.While investigating， you find that the INDEXES tablespace has run out of space and there is no more free space on the disk where the data files are available. Which two actions could you perform to overcome this error without affecting the queries that are currently being executed？（）ADrop and re-create the inbox.BCoalesce the ORDERS_IND index.CCoalesce the INDEXES tablespace.DDrop and re-create the ORDERS table.ERebuild the index online and move it to another tablespace.
考题
单选题The ADMIN_EMP table has columns EMPNO， ENAME， DEPTNO， and SAL. It has a materialized view EMP_MV with a materialized log and an ENAME_IDX index on the ENAME column. You need to perform an online table redefinition on the ADMIN_EMP table to move it from the TBS1 tablespace to the TBS2 tablespace in the same schema. What action is required for the dependent objects when you perform online redefinition on the table？（）A
The materialized view should have a complete refresh performed after the online table redefinition is completed.B
The materialized view should have a fast refresh performed after the online table redefinition is completed.C
The materialized view，materialized log，and the index should be dropped and re-created after the online table redefinition is complete.D
The materialized view and materialized log should be dropped and all constraints disabled and re-created after the online table redefinition is complete.
考题
多选题Online index rebuild functionality has been extended to include which four index structures？（）ABitmap indexes.BReverse key indexes.CFunction-based indexes.DKey-compressed indexes on regular tables.EKey-compressed indexes on IOT （including secondary indexes）
考题
单选题You are a DBA of your company. You created a database named SALES on an Oracle 10g instance. You have defined an index named INDEX1 on the database table named INVENTORY. Users are complaining that queries accessing the INVENTORY table are running slow. Upon investigation you determine that the tablespace where the index is located is experiencing high I/O and you decide to relocate the index to another tablespace. Which of these will be the best way to accomplish this objective？（）A
Rebuild the index.B
Coalesce the index.C
Drop and re-create the index in the new tablespace.D
Relocate the index using the ALTER INDEX...MOVE statement.
考题
多选题Identify the two situations in which the alert log file is updated with details. （）ARunning a query on a table returns ORA-600： Internal Error.BInserting a value in a table returns ORA-01722： invalid number.CCreating a table returns ORA-00955： name is already used by an existing object.DInserting a value in a table returns ORA-00001： unique constraint （SYS.PK_TECHP） violated.ERebuilding an index using ALTER INDEX ...REBUILD fails with an error ORA-01578： ORACLE data block corrupted （file # 14， block # 50）.
考题
单选题In your test database， you have created the ORDERS table as an index-organized table （IOT）. To facilitate faster querying， you have created a mapping table and a bitmap index on the ORDER_FILLED column. You observe that the query performance degrees when users perform a large volume of transactions. While investigating the reason， you find that the mapping table segment is fragmented， leading to poor performance. Which option would you use to defragment the mapping table without affecting the original table data？（）A
Export and import the mapping table.B
Drop and re-create the mapping table.C
Truncate the mapping table and reinsert the values.D
Use the ALTER TABLE .. REBUILD command to defragment the mapping table.
考题
单选题You are a database administrator for your company. Each night， you perform full backups of your SQL Server 2005 computer. During business hours， you perform hourly transaction log backups. You rebuild database indexes each night. You need to modify your backup strategy. You must ensure that the database recovers to a new server as quickly as possible. What should you do？（）A
Schedule the full backups to run after the nightly index is rebuilt.B
Schedule the full backup to run before the nightly index is rebuilt. Schedule a differential backup to run after the nightly index is rebuilt.C
Schedule an additional transaction log backup to run after the nightly index is rebuilt.D
Schedule a marker to be added to the transaction log before the nightly index is rebuilt.
考题
单选题You moved the index EMP_NO_INDX from one tablespace to another and then issued the following command to rebuild the index EMP_NO_INDX： SQL ALTER INDEX EMP_NO_INDX REBUILD ONLINE； Which table allows the users to access the EMP_NO_INDX index while performing the rebuild operation？（）A
Index-organized tableB
Mapping TableC
Clustered TableD
Journal Table
考题
多选题Identify two situations in which the alert log file is updated.（）ARunning a query on a table returns ORA-600: Internal Error.BInserting a value into a table returns ORA-01722: invalid number.CCreating a table returns ORA-00955: name us already in used by an existing objects.DInserting a value into a table returns ORA-00001: unique constraint (SYS.OK_TECHP) violated.ERebuilding an index using ALTER INDEX . . . REBUILD fails with an ORA-01578: ORACLE data block corrupted (file # 14, block # 50) error.
考题
单选题In your test database， you have created the ORDERS table as an index-organized table （IOT）. To facilitate faster querying， you have created a mapping table and a bitmap index on the ORDER_FILLED column. You observe that the query performance degrades when users perform a large volume of transactions. While investigating the reason， you find that the mapping table segment is fragmented， leading to poor performance. Which option would you use to defragment the mapping table without affecting the original table data？（）A
export and import the mapping tableB
drop and re-create the mapping tableC
truncate the mapping table and reinsert the valuesD
use the ALTER TABLE···REBUILD command to defragment the mapping table
考题
单选题当需要重建某个索引ix_customername，可以使用（）方式。A
ALTER INDEX ix_customername REBUILDB
ALTER INDEX ix_customername BUILDC
UPDATE INDEX ix_customername BUILDD
UPDATE INDEX ix_customername REBUILD
考题
单选题Users complain SQL statements using a particular index fail. Using DBVERIFY， you find that two separate blocks in the index have become corrupt. The database data files for user data and index are very large. What is the least disruptive recover strategy available in Oracle9i？（）A
Rebuild the index using the online option. B
Take the individual data file offline (not the whole tablespace), restore and recover the data file from backup with RMAN, then set the data file online again. C
Without setting the individual data file offline, use RMAN with Block Media Recovery to restore and recover only those blocks. D
Take the individual data file (not the whole tablespace) offline, use RMAN with Block Media Recovery to restore and recover only those blocks, then set the data file online again.
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