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单选题
Your developers have created table to store some of their program's data. After examining the slow Query Log, you see that they are using the LIKE operator and SUBSTER （ ） functions against a VARCHAR (10000) column quite often. An example of the start of one row of data: 'GREEN01020495888331993-12-10/2…' What should you do to improve the overall performance?（）
A
Convert the column to TEXT and add a fulltext index to the table
B
Create multiple prefix indexes of differing lengths
C
Convert their column to BINARY
D
Redesign the table so that the most commonly searched for string patterns are in their own columns
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更多 “单选题Your developers have created table to store some of their program's data. After examining the slow Query Log, you see that they are using the LIKE operator and SUBSTER （ ） functions against a VARCHAR (10000) column quite often. An example of the start of one row of data: 'GREEN01020495888331993-12-10/2…' What should you do to improve the overall performance?（）A Convert the column to TEXT and add a fulltext index to the tableB Create multiple prefix indexes of differing lengthsC Convert their column to BINARYD Redesign the table so that the most commonly searched for string patterns are in their own columns” 相关考题
考题
Your developers have created table to store some of their program‘s data.After examining the slow Query Log, you see that they are using the LIKE operator and SUBSTER () functions against a VARCHAR (10000) column quite often.An example of the start of one row of data: ‘GREEN01020495888331993-12-10/2…‘What should you do to improve the overall performance?（）A.Convert the column to TEXT and add a fulltext index to the tableB.Create multiple prefix indexes of differing lengthsC.Convert their column to BINARYD.Redesign the table so that the most commonly searched for string patterns are in their own columns
考题
—You work for a small chain of clothing stores. The Managing Director has asked you to write a short report on last month's performance.—Look at the charts and table below, on which you have already made some handwritten notes.—Then, using all your handwritten notes, write the report for your Managing Director—Write 120-140 words.
考题
While designing your database， you have created the EMPLOYEES table as an index/x7forganized table （IOT）. You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）A、A primary key must have been created.B、A mapping table must have been created.C、An overflow tablespace must have been specified.D、The PCTTHRESHOLD option must have been specified.
考题
While designing your database， you have created the EMPLOYEES table as an index-organized table （IOT）. You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（） A、A primary key must have been created.B、A mapping table must have been created.C、An overflow tablespace must have been specified.D、The PCTTHRESHOLD option must have been specified.
考题
While designing your database， you have created the EMPLOYEEStable as an index-organized （IOT）. You want to create a bitmap index on the JOD_IDcolumn to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）A、 A primary key must have been created.B、 A mapping table must have been created.C、 An overflow tablespace must have been specified.D、 The PCTTHRESHOLD option must have been specified.
考题
Identify the logical structure that will never have more than one data segment created for it.（）A、external tableB、partitioned tableC、partitioned indexD、nonclustered tableE、global temporary table
考题
A table was just created on your Oracle database with six extents allocated to it. Which of the following factors most likely caused the table to have so many extents allocated?（）A、The value for MINEXTENTS setting B、The value for PCTINCREASE setting C、The value for MAXEXTENTS setting D、By default, Oracle allocates six extents to all database objects
考题
You have created an ASP.NET server control named Shopping Cart for use by other developers. Some developers report that the Shopping Cart control does not function properly with ViewState disabled. You want to ensure that all instances of the Shopping Cart control work even if View State is disabled. What should you do？（）A、Require developers to set EnableViewStateMac to true.B、Store state in ControlState instead of ViewState.C、Serialize the state into an Application state entry called "MyControl".D、Require developers to change the session state mode to SQLServer.
考题
单选题Your developers have created table to store some of their program's data. After examining the slow Query Log, you see that they are using the LIKE operator and SUBSTER （ ） functions against a VARCHAR (10000) column quite often. An example of the start of one row of data: 'GREEN01020495888331993-12-10/2…' What should you do to improve the overall performance?（）A
Convert the column to TEXT and add a fulltext index to the tableB
Create multiple prefix indexes of differing lengthsC
Convert their column to BINARYD
Redesign the table so that the most commonly searched for string patterns are in their own columns
考题
多选题You work as a database administrator for Certkiller .com. In your development environmentenvironment， the developers are responsible for modifying the table structure according to the application requirements. However， you want to keep track of the ALTER TABLE commands being executed by developers， so you enable auditing to achieve this objective. Which two views would you refer to find out the audit information？（）ADBA_AUDIT_TRAILBDBA_AUDIT_SESSIONCDBA_FGA_AUDIT_TRAILDDBA_COMMON_AUDIT_TRAIL
考题
单选题You find that some queries on a table are taking a long time to execute because there are no indexes created on the table. You decide to invoke the SQL Access Advisor to determine the appropriate index to be created. Which package will you use to invoke the SQL Access Advisor？（）A
DBMS_SERVER_ALERTB
DBMS_ADVISORC
DBMS_RESOURCE_MANAGERD
DBMS_REPAIR
考题
单选题The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the database, you created a table called HR in your schema. What happens when you execute this query? SELECT * FROM HR;（）A
You obtain the results retrieved from the public synonym HR created by the database administrator.B
You obtain the results retrieved from the HR table that belongs to your schema.C
You get an error message because you cannot retrieve from a table that has the same name as a public synonym.D
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.E
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.
考题
单选题A table was just created on your Oracle database with six extents allocated to it. Which of the following factors most likely caused the table to have so many extents allocated?（）A
The value for MINEXTENTS setting B
The value for PCTINCREASE setting C
The value for MAXEXTENTS setting D
By default, Oracle allocates six extents to all database objects
考题
单选题ou have a large amount of historical data in a flat file. Some analysts in your organization need to query thisdata in the file. The file is too large to load the data in it into your current database. Which is the most effectivemethod to access this data in your database（）A
Use the database link.B
Use the SQL*Loader utility.C
Use the Oracle Data Pump utility.D
Create an external table and leave the data in the flat file
考题
单选题You are designing an application for a telecom company and you have been asked to design a database table to facilitate monthly bill generation. The bill would include details of customer calls， listed in chronological order. Which method would you follow to achieve this objective without increasing the overhead of sorting the rows？（）A
create a hash cluster to store the dataB
create an index cluster to store the dataC
create a partitioned table to store the dataD
create a sorted hash cluster to store the dataE
create a heap table with rowid to store the data
考题
单选题You have a large amount of historical data in a flat file. Some analysts in your organization need toquery this data in the file. The file is too large to load the data in it into your current database. Which is the most effective method to access this data in your database（）A
Use the database link.B
Use the SQL*Loader utility.C
Use the Oracle Data Pump utility.D
Create an external table and leave the data in the flat file
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While designing your database， you have created the EMPLOYEES table as an index/x7forganized table （IOT）. You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）A
A primary key must have been created.B
A mapping table must have been created.C
An overflow tablespace must have been specified.D
The PCTTHRESHOLD option must have been specified.
考题
单选题While designing your database， you have created the EMPLOYEEStable as an index-organized （IOT）. You want to create a bitmap index on the JOD_IDcolumn to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）A
A primary key must have been created.B
A mapping table must have been created.C
An overflow tablespace must have been specified.D
The PCTTHRESHOLD option must have been specified.
考题
单选题Which describes the default behavior when you create a table? （）A
The table is accessible to all users.B
Tables are created in the public schema.C
Tables are created in your schema.D
Tables are created in the DBA schema.E
You must specify the schema when the table is created.
考题
单选题Identify the logical structure that will never have more than one data segment created for it.（）A
external tableB
partitioned tableC
partitioned indexD
nonclustered tableE
global temporary table
考题
单选题You have created an ASP.NET server control named Shopping Cart for use by other developers. Some developers report that the Shopping Cart control does not function properly with ViewState disabled. You want to ensure that all instances of the Shopping Cart control work even if View State is disabled. What should you do？（）A
Require developers to set EnableViewStateMac to true.B
Store state in ControlState instead of ViewState.C
Serialize the state into an Application state entry called MyControl.D
Require developers to change the session state mode to SQLServer.
考题
单选题You have created an ASP.NET server control named ShoppingCart for use by other developers. Some developers report that the ShoppingCart control does not function properly with ViewState disabled. You want to ensure that all instances of the ShoppingCart control work even if ViewState is disabled. What should you do？（）A
Require developers to set EnableViewStateMac to true.B
Store state in ControlState instead of ViewState.C
Serialize the state into an Application state entry called MyControlD
Require developers to change the session state mode to SQL Server.
考题
单选题You have a large amount of historical data in an operating system file. Some analysts in your organization need to query this data. The file is too large to load into your current database. Which is the most effective method to accomplish the task？（）A
Upgrade the hardware/memory to accommodate the data.B
Load the data into your database by using the PARALLEL clause.C
Give analysts DBA privilege， so that they can query DBA_EXTERNAL_TABLES.D
Use an external table so you can have the metadata available in your database， but leave the data in the operating system files.
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You are designing an application for Certkiller .com and you have been asked to design a database table to facilitate monthly bill generation. The bill would include details of customer calls， listed in chronological order.Which method would you follow to achieve this objective without increasing the overhead of sorting the rows？（）A
create a hash cluster to store the dataB
create an index cluster to store the dataC
create a partitioned table to store the dataD
create a sorted hash cluster to store the dataE
create a heap table with rowid to store the data
考题
单选题By saying “raw materials do not exist, they are created” the author means _____.A
that there will be no more raw materials on the earth some time later, and man will have to create materials by themselvesB
that it is use that makes raw materials valuableC
that people have created various useful materials by using their intelligence and wisdomD
human creativity is amazing
考题
单选题On Monday， you dropped the DEPT table from your schema and then you re-created the DEPT table in your schema. On Wednesday， you have a requirement to restore the DEPT table from the recycle bin. Which statement is correct？（）A
You can restore the DEPT table by using the Oracle Flashback Drop feature， provided you use the RENAME TO clause.B
You can restore the DEPT table by using the Oracle Flashback Drop feature and a system-generated name will be assigned to the restored table.C
You cannot restore the DEPT table by using the Oracle Flashback Drop feature because a table with the name DEPT already exists in your schema.D
You cannot restore the DEPT table by using the Oracle Flashback Drop feature because the contents of the recycle bin are purged every 12 hours by default.
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