单选题You create a table in your database that contains 50，000 rows approximately. The queries performed on the table are complex and performed on the table frequently. Which advisor helps you achieve the best performance of database for queries by recommending the appropriate indexes？（）ASQL Access AdvisorB Memory AdvisorCSQL Tuning AdvisorD Segment Advisor
单选题
You create a table in your database that contains 50，000 rows approximately. The queries performed on the table are complex and performed on the table frequently. Which advisor helps you achieve the best performance of database for queries by recommending the appropriate indexes？（）
A
SQL Access Advisor
B
Memory Advisor
C
SQL Tuning Advisor
D
Segment Advisor
参考解析
解析：
暂无解析
相关考题：
You are the administrator of a SQL Server 2000 database. You import a table of geographic information from a Microsoft access database into a SQL Server 2000 database. The table has 12,000 rows. Each row averages 5,000 bytes. The table contains lockup data that does not change.You want to minimize the size of the data file and the time required to back up the data. Which two actions should you take? (Each correct answer presents part of the solution. Choose two)A. Create a 60-MB data file named geography.ndfB. Create a 95-MB data file named geography.ndfC. Create a 60-MB data file named geography.mdfD. Create a 95-MB data file named geography.mdfE. Place the table in the PRIMARY filegroup.F. Place the table in a new filegroup named LOCATION.
In your multitenant container database (CDB) containing pluggable database (PDBs), you granted theCREATE TABLE privilege to the common user C A_ADMIN in root and all PDBs. You execute thefollowing command from the root container:SQL >REVOKE create table FROM C A_ADMIN;What is the result?（）A. It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root only.B. It fails and reports an error because the CONTAINER=ALL clause is not used.C. It excludes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root and all PDBs.D. It fails and reports an error because the CONTAINER=CURRENT clause is not used.E.It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in all PDBs.
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.
You are planning to import customer data from the Customer table and the Country table in your SQL Server 2000 database into a SQL Server 2005 database. You want to ensure that during the import process，each value in the CountryCode column of the Customer table has a corresponding record in the CountryCode column in the Country table of the SQL Server 2005 database. You define a foreign key between these two tables. Thus，referential integrity will guarantee that the import routine fails if there are any records where a CountryCode value does not exist in the Country table but does exist in the Customer table. You need to ensure that the import process does not fail if records are encountered that do not exist in the Country table. What should you do？（）A、Drop the foreign key. Import the data by using the script. Re-create the foreign key.B、Create a CHECK constraint.C、Create a DML INSTEAD OF trigger that writes the failed records to a file or table.D、Create a DML AFTER trigger that writes the failed records to a file or table.
You are a database administrator for your company. The company uses a SQL Server 2005 database that includes a table named Inventory. The table contains a column named Price. A company policy states that the value in the Price column cannot be decreased by more than 10 percent in any single database operation. Updates to the Price column are made by various means， including by using ad hoc queries. You need to ensure that this company policy is enforced. What should you do？（）A、Create a trigger that rolls back changes to the Price column that violate company policy.B、Create a stored procedure that disallows changes to the Price column that violate company policy.C、On the Price column， create a check constraint that requires a specified minimum value.D、On the Price column， create a foreign key constraint to a table that contains valid prices.
You find today’s performance of your production database to be the best ever. Therefore， you want to be notified in the future whenever the performance degrades by 10% of today’s performance. What is the first step that you would take to ensure this？（）A、create baseline metrics for today’s performanceB、write the current database metrics to a database table and create a trigger to compare with future database statisticsC、write the current database metrics to a flat file and create an operating script to compare with future database statisticsD、write the current database metrics to a database table and create a procedure to compare with future database statisticsE、write the current database metrics to a database table and submit a job using DBMS_JOB to compare with future database statistics
You work as a database administrator for Certkiller .com. In your transaction application， you have scheduled a job to update the optimizer statistics at05：00 pm every Friday. The job has successfully completed. Which three pieces of information would you check to confirm that the statistics have been collected？（）A、Average row sizeB、Last analyzed dateC、Size of table in bytesD、Size of table in database blocksE、Number of free blocks in the free listF、Number of extents present in the table.
In which scenario do you use the Flashback Database feature？（）A、 when a table is dropped and you restore it from the Recycle BinB、 when a user’s schema is dropped and you recover the user’s schemaC、 when some incorrect data is inserted in the table and you retrieve the table to a state that was at a certain timestampD、 when a row of a table is updated frequently and committed， and you view all the versions of the row within a specific duration
You create a table in your database that contains 50，000 rows approximately. The queries performed on the table are complex and performed on the table frequently. Which advisor helps you achieve the best performance of database for queries by recommending the appropriate indexes？（） A、SQL Access AdvisorB、 Memory AdvisorC、SQL Tuning AdvisorD、 Segment Advisor
In one of your online transaction processing （OLTP） applications， users are manipulating and querying a database table simultaneously. From the Segment Advisor， you find that one of the tables is highly fragmented and you want to shrink the table immediately without affecting the currently active queries. Which option would you use with the ALTER TABLE command to achieve this objective？（）A、 REBUILDB、 CASCADEC、 TRUNCATED、 ROW MOVEMENTE、 SHRINK SPACE COMPACTF、 SHRINK SPACE CASCADE
You have lost all your database control files. To recover them， you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact. Which of the following is true regarding your recovery？（） A、 You will need to open the database with the resetlogs command.B、 All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.C、 You will use the resetlogs version of the create controlfile command.D、 You will use the noresetlogs version of the create controlfile command.E、 You will use the trace file to create a backup control file， and then you will recover the database with the recover database using backup controlfile command
You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table： SQL FLASHBACK TABLE ORDERS TO SCN 771513； What is the prerequisite to perform Flashback Table？（）A、 You must configure OMF in your database.B、 You must enable block change tracking feature in your database.C、 You must enable ROW MOVEMENT feature on the ORDERS table.D、 You must use the Flashback Version Query before using the Flashback Table feature.
You work with a SQL Server 2005 database that provides banking information for customers. You want customers to see banking reports that combine data that is retrieved from the database with real-time investment information that comes from a Web service provided by a third party. The investment information must be current when the reports are executed. You need to create the appropriate objects that support the reports. What should you do?（）A、 Publish the data in the database as an XML Web service by using the FOR XML AUTO clause. B、 Create a table to store the banking information for each customer. Create a trigger that fires when data is inserted into the table that joins with the data coming from the Web service. C、 Create a Transact-SQL stored procedure that uses a temporary table to store the banking information for each customer. Update the table with the values from the Web service. D、 Have a developer in your company create an assembly that calls the remote Web service. Create aCLR function by using the assembly. Call the CLR function and combine the results with banking information in the database.
You are employed as the exchange administrator at Company.com.the Company.com network contains an exchange 2010 organization that contains a single mailbox server named -ex01.Company.com has its headquarters in stockholm where you are located.-ex01 in turn contains two mailbox databases named kingdatabase1 and kingdatabase2.you receive an instruction from the cio to restore a backup of kingdatabase1.to ensure productivity you need to make sure that all examways users can connect to the mailboxes on kingdatabase1 whilst you doing the restore. What should you do？（）A、Your first step should be to create a Client Access server array.B、Your first step should be to create a database availability group （DAG）.C、Your first step should be to create a recovery storage group.D、Your first step should be to create a Recovery Mailbox database.
Your company uses a SQL Server 2005 database. Customer data from your trading partners is imported into the Customers table every night. You need to ensure that the customer record is updated if it already exists in the Customers table. If the record does not exist, the data needs to be inserted into the Customers table. What should you do?（）A、 Create a FOR trigger. B、 Create an INSTEAD OF trigger. C、 Create an AFTER trigger. D、 Create a DDL trigger.
You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database named DB1 in the instance. The DB1 database contains the following stored procedure. (Line numbers are useded for reference only.) 01 CREATE PROCEDURE Sales.Procedure1 02 AS 03 IF OBJECT_ID('Service.Table') IS NOT NULL 04 DROP TABLE Service.Table; 06 CREATE TABLE Service.Table ( 07 Id int PRIMARY KEY CLUSTERED, 08 Name varchar(100); 09 ); 11 ... 12 GOThe following exception is raised when a user tries to invoke Procedure1, "Msg 262, Level 14, State 1, Procedure Procedure1, Line 5 CREATE TABLE permission denied in database 'DB1'." You should grant the user access to execute Procedure1, you must assign only the required permissions. What action should you do perform?（） A、Between lines 01 and 02, you should insert the WITH EXECUTE AS apos;dboapos; clause. B、Between lines 01 and 02, you should insert the EXECUTE AS USER = apos;dboapos; statement. C、You should give the user the ALTER permission on the Service schema D、You should give the CREATE TABLE permission and permit the user to drop the Service.Table table.
You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database which is named Sellings in the instance. The Sellings database contains a table named Productions. The table is used to stores information about all types of products. The Productions table is often queried by users on the basis of the RadioSize column. The RadioSize column contains the NULL value for all products other than Radios. Currently no index exists on the RadionSize column. According to the requirement of the company CIO, you have to optimize the query performance and reduce the effect on the disk space to the least. So what action should you perform to achieve this goal?（） A、On the Products table, you should create a view. B、On the RadioSize column, you should create a clustered index C、On the RadioSize column, you should create a filtered index D、On the RadioSize column, you should create a unique clustered index
You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a n On-Line Analytical Processing （OLAP） database named in the instance. The database contains a dimension table named Clients. Ever hour backup of data of the Clients table is performed. But the Clinets table contains redundant data. You must keep the disk space used to store the Clients table. In the options below， which compression technology should you use？（）A、You should use row compression B、You should use page compression C、You should use backup compression D、You should use windows NTFS file system compression
单选题In which scenario do you use the Flashback Database feature？（）A when a table is dropped and you restore it from the Recycle BinB when a user’s schema is dropped and you recover the user’s schemaC when some incorrect data is inserted in the table and you retrieve the table to a state that was at a certain timestampD when a row of a table is updated frequently and committed， and you view all the versions of the row within a specific duration
多选题You work as a database administrator for Certkiller .com. In your transaction application， you have scheduled a job to update the optimizer statistics at05：00 pm every Friday. The job has successfully completed. Which three pieces of information would you check to confirm that the statistics have been collected？（）AAverage row sizeBLast analyzed dateCSize of table in bytesDSize of table in database blocksENumber of free blocks in the free listFNumber of extents present in the table.
多选题In your Oracle 10g database ， you have scheduled a job to update the optimizer statistics at 05：00 pm every Friday. The job has successfully completed. Which three pieces of information would you check to confirm that the statistics have been collected？（）Aaverage row sizeBlast analyzed dateCsize of table in bytesDsize of table in database blocksEnumber of free blocks in the free listFnumber of extents present in the table
单选题You are a database administrator for your company. The company uses a SQL Server 2005 database that includes a table named Inventory. The table contains a column named Price. A company policy states that the value in the Price column cannot be decreased by more than 10 percent in any single database operation. Updates to the Price column are made by various means， including by using ad hoc queries. You need to ensure that this company policy is enforced. What should you do？（）ACreate a trigger that rolls back changes to the Price column that violate company policy.BCreate a stored procedure that disallows changes to the Price column that violate company policy.COn the Price column， create a check constraint that requires a specified minimum value.DOn the Price column， create a foreign key constraint to a table that contains valid prices.
单选题Your company uses a SQL Server 2005 database. Customer data from your trading partners is imported into the Customers table every night. You need to ensure that the customer record is updated if it already exists in the Customers table. If the record does not exist, the data needs to be inserted into the Customers table. What should you do?（）A Create a FOR trigger. B Create an INSTEAD OF trigger. C Create an AFTER trigger. D Create a DDL trigger.
单选题You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a n On-Line Analytical Processing （OLAP） database named in the instance. The database contains a dimension table named Clients. Ever hour backup of data of the Clients table is performed. But the Clinets table contains redundant data. You must keep the disk space used to store the Clients table. In the options below， which compression technology should you use？（）AYou should use row compression BYou should use page compression CYou should use backup compression DYou should use windows NTFS file system compression
单选题In one of your online transaction processing （OLTP） applications， users are manipulating and querying a database table simultaneously. From the Segment Advisor， you find that one of the tables is highly fragmented and you want to shrink the table immediately without affecting the currently active queries. Which option would you use with the ALTER TABLE command to achieve this objective？（）A REBUILDB CASCADEC TRUNCATED ROW MOVEMENTE SHRINK SPACE COMPACTF SHRINK SPACE CASCADE
单选题You find today’s performance of your production database to be the best ever. Therefore， you want to be notified in the future whenever the performance degrades by 10% of today’s performance. What is the first step that you would take to ensure this？（）Acreate baseline metrics for today’s performanceBwrite the current database metrics to a database table and create a trigger to compare with future database statisticsCwrite the current database metrics to a flat file and create an operating script to compare with future database statisticsDwrite the current database metrics to a database table and create a procedure to compare with future database statisticsEwrite the current database metrics to a database table and submit a job using DBMS_JOB to compare with future database statistics
单选题You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table： SQL FLASHBACK TABLE ORDERS TO SCN 771513； What is the prerequisite to perform Flashback Table？（）A You must configure OMF in your database.B You must enable block change tracking feature in your database.C You must enable ROW MOVEMENT feature on the ORDERS table.D You must use the Flashback Version Query before using the Flashback Table feature.