You have a very large table that your users access frequently. Which of the following advisors will recommend any indexes to improve the performance of queries against this table?（）A、The Automatic Memory Manager (AMM)B、The SQL Tuning AdvisorC、The Segment AdvisorD、The SQL Access Advisor SQL
You have a very large table that your users access frequently. Which of the following advisors will recommend any indexes to improve the performance of queries against this table?（）
- A、The Automatic Memory Manager (AMM)
- B、The SQL Tuning Advisor
- C、The Segment Advisor
- D、The SQL Access Advisor SQL
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In the US,people prefer waiting for a table to sitting with people they don't know．This means a hostess may not seat a small group until a small table is available,even if a large one is．If you are sitting at a table with people you don't know,it is impolite to light up a cigarette without first asking if it will disturb them.At American restaurants and coffee shops you are usually served tap water before you order．You may find the bread and butter is free,and if you order coffee,you may get a free refill.Most cities and towns have no roles about opening and closing times for stores or restaurants,though they usually do make rules for bars．Especially in large cities,stores may be open 24 hours a day．Servings in restaurants are often large,too large for many people．If you can't finish your meal but would like to enjoy the food later,ask your waitress or waiter for a"doggie bag"．It may have a picture of a dog on it,but everybody knows you are taking food for yourself.Supper and dinner are both words for the evening meal．Some people have"Sunday dinner"．This is an especially big noon meal.Tips are not usually added to the check．They are not included in the price of the meal,either．A tip of about 15%is expected and you should leave it on the table when you leave．In some restaurants,a check is brought on a plate and you put your money there．Then the waiter or waitress brings you your change.Sunday dinner is~A.a dinner in the eveningB.a big noon mealC.a big meal on SundayD.a supper on Sunday
In the US,people prefer waiting for a table to sitting with people they don't know．This means a hostess may not seat a small group until a small table is available,even if a large one is．If you are sitting at a table with people you don't know,it is impolite to light up a cigarette without first asking if it will disturb them.At American restaurants and coffee shops you are usually served tap water before you order．You may find the bread and butter is free,and if you order coffee,you may get a free refill.Most cities and towns have no roles about opening and closing times for stores or restaurants,though they usually do make rules for bars．Especially in large cities,stores may be open 24 hours a day．Servings in restaurants are often large,too large for many people．If you can't finish your meal but would like to enjoy the food later,ask your waitress or waiter for a"doggie bag"．It may have a picture of a dog on it,but everybody knows you are taking food for yourself.Supper and dinner are both words for the evening meal．Some people have"Sunday dinner"．This is an especially big noon meal.Tips are not usually added to the check．They are not included in the price of the meal,either．A tip of about 15%is expected and you should leave it on the table when you leave．In some restaurants,a check is brought on a plate and you put your money there．Then the waiter or waitress brings you your change.Which statement is true?A.American people like sitting with people they don't knoB.A hostess always seats a small group at a large tablC.American people never sit with people they don't knoD.American people would not light a cigarette if the people who sit at the same table mind their smokin
In the US,people prefer waiting for a table to sitting with people they don't know．This means a hostess may not seat a small group until a small table is available,even if a large one is．If you are sitting at a table with people you don't know,it is impolite to light up a cigarette without first asking if it will disturb them.At American restaurants and coffee shops you are usually served tap water before you order．You may find the bread and butter is free,and if you order coffee,you may get a free refill.Most cities and towns have no roles about opening and closing times for stores or restaurants,though they usually do make rules for bars．Especially in large cities,stores may be open 24 hours a day．Servings in restaurants are often large,too large for many people．If you can't finish your meal but would like to enjoy the food later,ask your waitress or waiter for a"doggie bag"．It may have a picture of a dog on it,but everybody knows you are taking food for yourself.Supper and dinner are both words for the evening meal．Some people have"Sunday dinner"．This is an especially big noon meal.Tips are not usually added to the check．They are not included in the price of the meal,either．A tip of about 15%is expected and you should leave it on the table when you leave．In some restaurants,a check is brought on a plate and you put your money there．Then the waiter or waitress brings you your change.Which statement is not mentioned in the passage?A.Tips are not usually included in the total checB.A 15 percent tip in large cities indicates satisfactory servicC.People tip waiters and waitresseD.People always put tips on the tabl
In the US,people prefer waiting for a table to sitting with people they don't know．This means a hostess may not seat a small group until a small table is available,even if a large one is．If you are sitting at a table with people you don't know,it is impolite to light up a cigarette without first asking if it will disturb them.At American restaurants and coffee shops you are usually served tap water before you order．You may find the bread and butter is free,and if you order coffee,you may get a free refill.Most cities and towns have no roles about opening and closing times for stores or restaurants,though they usually do make rules for bars．Especially in large cities,stores may be open 24 hours a day．Servings in restaurants are often large,too large for many people．If you can't finish your meal but would like to enjoy the food later,ask your waitress or waiter for a"doggie bag"．It may have a picture of a dog on it,but everybody knows you are taking food for yourself.Supper and dinner are both words for the evening meal．Some people have"Sunday dinner"．This is an especially big noon meal.Tips are not usually added to the check．They are not included in the price of the meal,either．A tip of about 15%is expected and you should leave it on the table when you leave．In some restaurants,a check is brought on a plate and you put your money there．Then the waiter or waitress brings you your change.What do American people always do when servings are too large for them?A.They take the food home with a doggie bag for their dogB.They leave the food on the table and go awaC.They take the food home with a doggie bag and enjoy the food lateD.They ask the waitress or waiter to keep the food for the
Can I get you a drink?（）But I have already got oneAThat's very nice of youBNo, you don't have toCYes, pleaseDWith pleasure
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.
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.
You have a very large table that your users access frequently. Which of the following advisors will recommend any indexes to improve the performance of queries against this table?（）A、The Automatic Memory Manager (AMM)B、The SQL Tuning AdvisorC、The Segment AdvisorD、The SQL Access Advisor
You have a server that has very limited memory but has a very large table. You will use mysqldump to back up this table. Which option will ensure mysqldump will process a row at a time instead of buffering a set of rows?（）A、— quickB、— skip-bufferC、— single-transactionD、— tab
You work with a database named DB1， which is located on a SQL Server 2005 computer. You discover that a table scan on Table1 in DB1 causes a slow query. Table1 is a very large table that is used frequently. You ascertain that the query contains the following statement. SELECT col1， col2 FROM table1 WHERE col3 = You need to provide maximum query performance. Table1 must remain available to users. What should you do？（）A、Update all statistics on Table1 in DB1.B、Use the CREATE STATISTICS statement in DB1 to create missing statistics on col3of Table1.C、Set the priority boost server option to 1.D、Execute the following statement.USE DB1GOCREATE INDEX index1 ON table1（col3）INCLUDE（col1， col2） WITH （ONLINE = ON）GO
单选题You have a very large table that your users access frequently. Which of the following advisors will recommend any indexes to improve the performance of queries against this table？（）A The Automatic Memory Manager （AMM）B The SQL Tuning AdvisorC The Segment AdvisorD The SQL Access Advisor
单选题You have a very large table that your users access frequently. Which of the following advisors will recommend any indexes to improve the performance of queries against this table?（）AThe Automatic Memory Manager (AMM)BThe SQL Tuning AdvisorCThe Segment AdvisorDThe SQL Access Advisor SQL
单选题You have a very large table that your users access frequently. Which of the following advisors will recommend any indexes to improve the performance of queries against this table?（）AThe Automatic Memory Manager (AMM)BThe SQL Tuning AdvisorCThe Segment AdvisorDThe SQL Access Advisor
单选题You need to display a very large single-record data block. Since it will be so large, a convenient means of navigation is needed between items. Which type of canvas would you use to display the data block? （）ATab canvas. BPop up canvas. CSpread table canvas. DVertical toolbar canvas.
单选题You have a server that has very limited memory but has a very large table. You will use mysqldump to back up this table. Which option will ensure mysqldump will process a row at a time instead of buffering a set of rows?（）A— quickB— skip-bufferC— single-transactionD— tab
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.
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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？（）Aexport and import the mapping tableBdrop and re-create the mapping tableCtruncate the mapping table and reinsert the valuesDuse the ALTER TABLE···REBUILD command to defragment the mapping table
单选题You have many users complaining about slow inserts into a large table. While investigating the reason， you find that the number of indexes on the table is high. You want to find out which indexes are not being used. Which method would you follow to achieve this？（）Aenable index monitoring and query the DBA_OBJECTS viewBenable index monitoring and query the DBA_INDEXES viewCenable index monitoring and query the V$OBJECT_USAGE viewDenable index monitoring and view the DBA_INDEXTYPE_COMMENTS view
单选题Ray: Have you met the new boss yet? David: No, tell me—what’s he like? Ray: Well, I met him this morning and my first impression was very positive. _______, and I hear he’s got a great sense of humor. David: That’s great!AHe came across as very pleasant BHe has a large officeCHe seems very unfriendly DHe’s not very sharp