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A warehouse fact table in your Oracle 12c Database is range-partitioned by month and accessed frequently with queries that span multiple partitions The table has a local prefixed, range partitioned index. Some of these queries access very few rows in some partitions and all the rows in other partitions, but these queries still perform a full scan for all accessed partitions. This commonly occurs when the range of dates begins at the end of a month or ends close to the start of a month. You want an execution plan to be generated that uses indexed access when only a few rows are accessed from a segment, while still allowing full scans for segments where many rows are returned. Which three methods could transparently help to achieve this result?（）
- A、Using a partial local Index on the warehouse fact table month column with indexing disabled to the table partitions that return most of their rows to the queries.
- B、Using a partial local Index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.
- C、Using a partitioned view that does a UNION ALL query on the partitions of the warehouse fact table, which retains the existing local partitioned column.
- D、Converting the partitioned table to a partitioned view that does a UNION ALL query on the monthly tables, which retains the existing local partitioned column
- E、Using a partial global index on the warehouse fact table month column with indexing disabling for the table partitions that return most of their rows to the queries.
- F、Using a partial global index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.
参考答案
更多 “ A warehouse fact table in your Oracle 12c Database is range-partitioned by month and accessed frequently with queries that span multiple partitions The table has a local prefixed, range partitioned index. Some of these queries access very few rows in some partitions and all the rows in other partitions, but these queries still perform a full scan for all accessed partitions. This commonly occurs when the range of dates begins at the end of a month or ends close to the start of a month. You want an execution plan to be generated that uses indexed access when only a few rows are accessed from a segment, while still allowing full scans for segments where many rows are returned. Which three methods could transparently help to achieve this result?（）A、Using a partial local Index on the warehouse fact table month column with indexing disabled to the table partitions that return most of their rows to the queries.B、Using a partial local Index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.C、Using a partitioned view that does a UNION ALL query on the partitions of the warehouse fact table, which retains the existing local partitioned column.D、Converting the partitioned table to a partitioned view that does a UNION ALL query on the monthly tables, which retains the existing local partitioned columnE、Using a partial global index on the warehouse fact table month column with indexing disabling for the table partitions that return most of their rows to the queries.F、Using a partial global index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.” 相关考题
考题
若某企业的数据库系统中有如下所示的员工关系和仓库关系，每个仓库可有多名员工，但只有一名负责人。员工关系(cmployee)：仓库关系(warehouse)：则创建仓库表结构的SQL语句为(58)。A．CREATE TABLE(employeeID CHAR(2)NOT NULL UNIQUE, name CHAR(30)NOT NULL, address CHAR(40), pricipallD CHAR(3));B．CREATE warehouse(warehouseD CHAR(2)PRIMARY KEY, name CHAR(30), address CHAR(40), pficipalID CHAR(3));C．CREATE TABLE warehouse(warehouselD CHAR(2)PRIMARY KEY, name CHAR(30)NOT NULL, address CHAR(40), pricipalID CHAR(3), FOREIGN KEY(priciPalID)REFERENCES employee(employeeID));D．CREATE TABLE warehouse(warehouselD CHAR(2), name CHAR(30)NOT NULL, address CHAR(40), pricipalID CHAR(3), PRIMARY KEY(warehouselD), FOREIGN KEY(employeeID)REFERENCES emplo
考题
某企业的数据库系统中有如下所示的员工关系和仓库关系，每个仓库可有多名员工，但只有一名负责人。员工关系(employee)：仓库关系(warehouse)：则创建仓库表结构的SQL语句为(58)。A．CREATE TABLE (employee ID CHAR(2)NOTNULL UNIQUE， name CHAR(30)NOT NULL， address CHAR(40)， principal ID CHAR(3))；B．CREATE warehouse(warehouse ID CHAR(2)PRIMARY KEY， name CHAR(30)， address CHAR(40)， principal ID CHAR(3))；C．CREATE TABLE warehouse(warehouse ID CHAR(2)PRIMARY KEY， name CHAR(30)NOT NULL， address CHAR(40)， principal ID CHAR(3)， FOREIGN KEY(principal ID)REFERENCES employee(employee ID))；D．CREATE TABIE warehouse(warehouse ID CHAR(2)， name CHAR(30)NOT NULL， address CHAR(40)， principal ID CHAR(3)， PRIMARY REY(warehouse ID)， FOREIGN KEY(employee ID)REFERENCES employee(employee ID))；
考题
共用题干
第二篇Good Table MannersManners play an important part in making a favorable impression at the dinner table.Here are some general rules:Napkin（餐巾）useThe meal begins when the host unfolds his or her napkin.This is your signal to do thesame,so place your napkin on your lap.Unfold it completely if it is a small napkin,or inhalf, lengthwise（纵向地）,if it is a large dinner napkin.If you need to leave the table during the meal,place your napkin on your chair as asignal to your server that you will be returning.Once the meal is over,place your napkinneatly on the table to the right of your dinner plate.Do not refold it.Use a napkin only for your mouth.Never use it for your nose,face or forehead.Use of utensils（餐具）Start with the knife,fork or spoon furthest from your plate,and work your way in,using one utensil for each course.If soup is served,remember to spoon away from yourself.This helps stop the drips.Do not put the entire soup spoon in your mouth.Instead,fill a soup spoon about 75 percent with soup,and sip（啜饮）it from the side noiselessly.After finishing dinner,place the knife and fork parallel to one another across the platewith the knife blade facing inward toward the plate.Using your fingersHere's a list of finger foods:sandwiches,cookies,small fruits or berries with stems,French fries and potato chips,and hamburgers.Chew（咀嚼）with your mouth closed and don't make noise;don't talk with your mouthfull.Bread must be broken with your hands.It is never cut with a knife.Don't pick something out of your teeth.Instead,excuse yourself to the bathroom.If possible,try not to cough at the table.Do not put your elbows（肘）on the table.In France, it is essential to have bothhands above the table at the same time.Do not put bones or anything else on the table.Things that are not eaten should be puton your plate. Which of the following shows good table manners?A:Talking with your mouth full. B:Putting bones on your plate.C:Putting your elbows on the table. D:Chewing with your month open.
考题
共用题干
第二篇Good Table MannersManners play an important part in making a favorable impression at the dinner table.Here are some general rules:Napkin（餐巾）useThe meal begins when the host unfolds his or her napkin.This is your signal to do thesame,so place your napkin on your lap.Unfold it completely if it is a small napkin,or inhalf, lengthwise（纵向地）,if it is a large dinner napkin.If you need to leave the table during the meal,place your napkin on your chair as asignal to your server that you will be returning.Once the meal is over,place your napkinneatly on the table to the right of your dinner plate.Do not refold it.Use a napkin only for your mouth.Never use it for your nose,face or forehead.Use of utensils（餐具）Start with the knife,fork or spoon furthest from your plate,and work your way in,using one utensil for each course.If soup is served,remember to spoon away from yourself.This helps stop the drips.Do not put the entire soup spoon in your mouth.Instead,fill a soup spoon about 75 percent with soup,and sip（啜饮）it from the side noiselessly.After finishing dinner,place the knife and fork parallel to one another across the platewith the knife blade facing inward toward the plate.Using your fingersHere's a list of finger foods:sandwiches,cookies,small fruits or berries with stems,French fries and potato chips,and hamburgers.Chew（咀嚼）with your mouth closed and don't make noise;don't talk with your mouthfull.Bread must be broken with your hands.It is never cut with a knife.Don't pick something out of your teeth.Instead,excuse yourself to the bathroom.If possible,try not to cough at the table.Do not put your elbows（肘）on the table.In France, it is essential to have bothhands above the table at the same time.Do not put bones or anything else on the table.Things that are not eaten should be puton your plate. Where is the napkin normally placed during the meal?A:On your chair. B:On the table.C:On your lap. D:On your plate.
考题
共用题干
第二篇Good Table MannersManners play an important part in making a favorable impression at the dinner table.Here are some general rules:Napkin（餐巾）useThe meal begins when the host unfolds his or her napkin.This is your signal to do thesame,so place your napkin on your lap.Unfold it completely if it is a small napkin,or inhalf, lengthwise（纵向地）,if it is a large dinner napkin.If you need to leave the table during the meal,place your napkin on your chair as asignal to your server that you will be returning.Once the meal is over,place your napkinneatly on the table to the right of your dinner plate.Do not refold it.Use a napkin only for your mouth.Never use it for your nose,face or forehead.Use of utensils（餐具）Start with the knife,fork or spoon furthest from your plate,and work your way in,using one utensil for each course.If soup is served,remember to spoon away from yourself.This helps stop the drips.Do not put the entire soup spoon in your mouth.Instead,fill a soup spoon about 75 percent with soup,and sip（啜饮）it from the side noiselessly.After finishing dinner,place the knife and fork parallel to one another across the platewith the knife blade facing inward toward the plate.Using your fingersHere's a list of finger foods:sandwiches,cookies,small fruits or berries with stems,French fries and potato chips,and hamburgers.Chew（咀嚼）with your mouth closed and don't make noise;don't talk with your mouthfull.Bread must be broken with your hands.It is never cut with a knife.Don't pick something out of your teeth.Instead,excuse yourself to the bathroom.If possible,try not to cough at the table.Do not put your elbows（肘）on the table.In France, it is essential to have bothhands above the table at the same time.Do not put bones or anything else on the table.Things that are not eaten should be puton your plate. The napkin is used only forA:your forehead. B:your mouth,C:your nose. D:your face.
考题
Passage One
Table top magic requires no secret formula．Even the simplest meal will be received with enthusiasm if the table accessories are creative and colorful．No matter what type of dinnerware you own，you can enhance its beauty with a variety of attractive table linens．
When selecting a supply of tablecloths，place mats and napkins，choose easy—care or permanent—press fabrics because these fabrics will reduce your workload when washday rolls around．Another consideration is the suitability of your linens for your dining style or the types of entertaining you do．The shape of your table will also dictate the kind of tablecloth you purchase．Circular or rounded tables look best covered with round or oval tablecloths．Square—cornered tables require squares or rectangles．
Finally，your table linens should?complement?your dinnerware．An elegant table setting requires an elegant tablecloth．A setting of stoneware looks best with heavy of colorful fabrics．
But sure to take all the necessary measurements before you start shopping for fabric of your choice．It could be embarrassing if your tablecloths are not long enough to cover the tables．It is equally distressing if your tablecloth is so long that your guests have to watch where they walk．
Linens should complement your dinnerware．The underlined word means______．A.be the same color as
B.hide defects in
C.go well with
D.serve as a contrast to
考题
Passage One
Table top magic requires no secret formula．Even the simplest meal will be received with enthusiasm if the table accessories are creative and colorful．No matter what type of dinnerware you own，you can enhance its beauty with a variety of attractive table linens．
When selecting a supply of tablecloths，place mats and napkins，choose easy—care or permanent—press fabrics because these fabrics will reduce your workload when washday rolls around．Another consideration is the suitability of your linens for your dining style or the types of entertaining you do．The shape of your table will also dictate the kind of tablecloth you purchase．Circular or rounded tables look best covered with round or oval tablecloths．Square—cornered tables require squares or rectangles．
Finally，your table linens should?complement?your dinnerware．An elegant table setting requires an elegant tablecloth．A setting of stoneware looks best with heavy of colorful fabrics．
But sure to take all the necessary measurements before you start shopping for fabric of your choice．It could be embarrassing if your tablecloths are not long enough to cover the tables．It is equally distressing if your tablecloth is so long that your guests have to watch where they walk．
Which size tablecloth would you buy for a circular table which is 30 inches high and 45 inches in diameter?A.45-inch roun
B.50-inch roun
C.70-inch roun
D.120-inch roun
考题
Passage One
Table top magic requires no secret formula．Even the simplest meal will be received with enthusiasm if the table accessories are creative and colorful．No matter what type of dinnerware you own，you can enhance its beauty with a variety of attractive table linens．
When selecting a supply of tablecloths，place mats and napkins，choose easy—care or permanent—press fabrics because these fabrics will reduce your workload when washday rolls around．Another consideration is the suitability of your linens for your dining style or the types of entertaining you do．The shape of your table will also dictate the kind of tablecloth you purchase．Circular or rounded tables look best covered with round or oval tablecloths．Square—cornered tables require squares or rectangles．
Finally，your table linens should?complement?your dinnerware．An elegant table setting requires an elegant tablecloth．A setting of stoneware looks best with heavy of colorful fabrics．
But sure to take all the necessary measurements before you start shopping for fabric of your choice．It could be embarrassing if your tablecloths are not long enough to cover the tables．It is equally distressing if your tablecloth is so long that your guests have to watch where they walk．
Tile author suggests that you purchase table linens made of______．A.bleacsafe fabric
B.preshrunk cloth
C.easy—care material
D.stain—resistant cotton
考题
Directions:Write an essay based on the following table.In your writing,you should interpret the table,and give your comments.You should write about 150 words on the ANSWER SHEET.
考题
Write an essay based on the following table.In your writing,you should describe the table,and give your comments.You should write at least 150 words.You should write at least 150 words.
考题
共用题干
Good Table MannersManners play an important part in making a favorable impression at the dinner table.Here are some general rules:Napkin（餐巾）useThe meal begins when the host unfolds his or her napkin.This is your signal to do the same, so place your napkin on your lap.Unfold it completely if it is a small napkin,or in half,lengthwise （纵向地）, if it is a large dinner napkin.If you need to leave the table during the meal,place your napkin on your chair as a signal to your server that you will be returning.Once the meal is over,place your napkin neatly on the table to the right of your dinner plate.Do not refold it.Use a napkin only for your mouth.Never use it for your nose,face or forehead.Use of utensils（餐具）Start with the knife,fork or spoon furthest from your plate,and work your way in,using one utensil for each course.If soup is served,remember to spoon away from yourself. This helps stop the drips.Do not put the entire soup spoon in your mouth .Instead,fill a soup spoon about 75 per cent with soup,and sip（吸饮）it from the side noiselessly.After finishing dinner,place the knife and fork parallel to one another across the plate with the knife blade facing inward toward the plate.Using your fingersHere's a list of finger foods:sandwiches,cookies,small fruits or berries with stems,French fries and potato chips,and hamburgers.Chew（咀嚼)with your mouth closed and don't make noise;don't talk with your mouth full.Bread must be broken with your hands. It is never cut with a knife.Don't pick something out of your teeth .Instead,excuse yourself to the bathroom.If possible,try not to cough at the table.Do not put your elbows（肘）on the table .In France,it is essential to have both hands above the table at the same time.Do not put bones or anything else on the table.Things that are not eaten should be put on your plate. The napkin is used only for______.A: your foreheadB: your mouthC: your noseD: your face
考题
共用题干
Good Table MannersManners play an important part in making a favorable impression at the dinner table.Here are some general rules:Napkin（餐巾）useThe meal begins when the host unfolds his or her napkin.This is your signal to do the same, so place your napkin on your lap.Unfold it completely if it is a small napkin,or in half,lengthwise （纵向地）, if it is a large dinner napkin.If you need to leave the table during the meal,place your napkin on your chair as a signal to your server that you will be returning.Once the meal is over,place your napkin neatly on the table to the right of your dinner plate.Do not refold it.Use a napkin only for your mouth.Never use it for your nose,face or forehead.Use of utensils（餐具）Start with the knife,fork or spoon furthest from your plate,and work your way in,using one utensil for each course.If soup is served,remember to spoon away from yourself. This helps stop the drips.Do not put the entire soup spoon in your mouth .Instead,fill a soup spoon about 75 per cent with soup,and sip（吸饮）it from the side noiselessly.After finishing dinner,place the knife and fork parallel to one another across the plate with the knife blade facing inward toward the plate.Using your fingersHere's a list of finger foods:sandwiches,cookies,small fruits or berries with stems,French fries and potato chips,and hamburgers.Chew（咀嚼)with your mouth closed and don't make noise;don't talk with your mouth full.Bread must be broken with your hands. It is never cut with a knife.Don't pick something out of your teeth .Instead,excuse yourself to the bathroom.If possible,try not to cough at the table.Do not put your elbows（肘）on the table .In France,it is essential to have both hands above the table at the same time.Do not put bones or anything else on the table.Things that are not eaten should be put on your plate. All of the following are finger foods except______.A: soupB: sandwichesC: cookiesD: hamburgers
考题
共用题干
第二篇Good Table MannersManners play an important part in making a favorable impression at the dinner table. Here are some general rules:Napkin（餐巾）useThe meal begins when the host unfolds his or her napkin.This is your signal to do the same,so place your napkin on your lap.Unfold it completely if it is a small napkin,or in half , lengthwise（纵向地）,if it is a large dinner napkin.If you need to leave the table during the meal,place your napkin on your chair as a signal to your server that you will be returning.Once the meal is over,place your napkinneatly on the table to the right of your dinner plate.Do not refold it.Use a napkin only for your mouth.Never use it for your nose,face or forehead.Use of utensils（餐具）Start with the knife,fork or spoon furthest from your plate,and work your way in,using one utensi!for each course.If soup is served,remember to spoon away from yourself.This helps stop the drips. Do not put the entire soup spoon in your mouth.Instead,fill a soup spoon about 75 percent with soup,and sip（吸饮）it from the side noiselessly.After finishing dinner,place the尽nife and fork parallel to one another across the plate with the knife blade facing inward toward the plate.Using your fingers Here's a list of finger foods:sandwiches,cookies,small fruits or berries with stems, French fries and potato chips,and hamburgers.Chew（咀嚼）with your mouth closed don't make noise;don't talk with your mouthfull.Bread must be broken with your hands. Itis never cut with a knife.Don't pick something out of your teeth.Instead,excuse yourself to have both handsabove the table at the same time.Do not put bones or anything else on the table.Things that are not eaten should be puton your plate.Where is the napkin normally placed during the meal?A:On your chair. B:On the table.C:On your lap. D:On your plate.
考题
Good Table Manners
Manners play an important part in making a favorable impression at the dinner table. Here are some general rules： Napkin （餐巾） use
The meal begins when the host unfolds his or her napkin. This is your signal to do the same， so place your napkin on your lap. Unfold it completely if it is a small napkin. Or in half， lengthwise （纵向地） ，if it is a large dinner napkin.
If you need to leave the table during the meal， place your napkin on your chair as a signal to your server that you will be returning. Once the meal is over， place your napkin neatly on the table to the right of your dinner plate. Do not refold it.
Use a napkin only for your mouth. Never use it for your nose， face or forehead. Use of utensils （餐具）
Start with the knife， fork or spoon furthest from your plate， and work your way in， using one utensil for each course. If soup is served， remember to spoon away from yourself. This helps stop the drips. Do not put the entire soup spoon in your mouth. Instead， fill a soup spoon about 75 per cent with soup， and sip（啜饮）it from the side noiselessly.
After finishing dinner， place the knife and fork parallel to one another across the plate with the knife blade facing inward toward the plate.
Using your fingers
Here's a list of finger foods： sandwiches， cookies， small fruits or berries with stems， French fries and potato chips， and hamburgers.
Chew（咀嚼）with your mouth closed and don't make noise； don't talk with your mouth full. Bread must be broken with your hands. It is never cut with a knife.
Don't pick something Out of your teeth. Instead， excuse yourself to the bathroom. If possible， try not to cough at the table. Do not put your elbows （肘） on the table. In France， it is essential to have both hands above the table at the same time. Do not put bones or anything else on the table. Things that are not eaten should be put on your plate.
Where is the napkin normally placed during the meal？（） A、On your chairB、On the tableC、On your lapD、On your plate
考题
You issued the following statement in your SQL*Plus session： SQLALTER SESSION ENABLE RESUMABLE TIMEOUT 600； Which operation is neither suspended nor resumed using the Automatic Resumable Allocation feature in your database？（）A、 creating a table in your schema and you exceed your allocated space quota on the tablespaceB、 executing a long query that involves a sort operation and the statement runs out of temporary spaceC、 loading data into tables by using the SQL*Loader and the number of extents in the table reaches the maximum limitD、 creating a table in a dictionary-managed tablespace with an explicit MAXEXTENTS setting which results in an out of space error
考题
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.
考题
单选题You are responsible for a data warehouse application that uses records from an external table to update one of the dimension tables periodically. The records in the external table may contain data for new rows in the dimension table， or for updates to its existing rows. Which type of SQL command would you use to transfer the data from the external table to the dimension table as efficiently as possible？（）A
MERGEB
SELECT …CROSS JOINC
INSERT ALL …SELECTD
CREATE VIEW …CONSTRAINT
考题
单选题Putting your mobile phone on a restaurant table may make your friends think _____.A
you prefer to talk to your friends at the tableB
you value your calls more than your friendsC
you are enjoying the company of your friendsD
you are polite and considerate of your friends
考题
单选题Good Table Manners
Manners play an important part in making a favorable impression at the dinner table. Here are some general rules： Napkin （餐巾） use
The meal begins when the host unfolds his or her napkin. This is your signal to do the same， so place your napkin on your lap. Unfold it completely if it is a small napkin. Or in half， lengthwise （纵向地） ，if it is a large dinner napkin.
If you need to leave the table during the meal， place your napkin on your chair as a signal to your server that you will be returning. Once the meal is over， place your napkin neatly on the table to the right of your dinner plate. Do not refold it.
Use a napkin only for your mouth. Never use it for your nose， face or forehead. Use of utensils （餐具）
Start with the knife， fork or spoon furthest from your plate， and work your way in， using one utensil for each course. If soup is served， remember to spoon away from yourself. This helps stop the drips. Do not put the entire soup spoon in your mouth. Instead， fill a soup spoon about 75 per cent with soup， and sip（啜饮）it from the side noiselessly.
After finishing dinner， place the knife and fork parallel to one another across the plate with the knife blade facing inward toward the plate.
Using your fingers
Here's a list of finger foods： sandwiches， cookies， small fruits or berries with stems， French fries and potato chips， and hamburgers.
Chew（咀嚼）with your mouth closed and don't make noise； don't talk with your mouth full. Bread must be broken with your hands. It is never cut with a knife.
Don't pick something Out of your teeth. Instead， excuse yourself to the bathroom. If possible， try not to cough at the table. Do not put your elbows （肘） on the table. In France， it is essential to have both hands above the table at the same time. Do not put bones or anything else on the table. Things that are not eaten should be put on your plate.
Which of the following shows good table manners？（）A
Talking with your mouth fullB
Putting bones on your plateC
Putting your elbows on the tableD
Chewing with your month open
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Good Table Manners
Manners play an important part in making a favorable impression at the dinner table. Here are some general rules： Napkin （餐巾） use
The meal begins when the host unfolds his or her napkin. This is your signal to do the same， so place your napkin on your lap. Unfold it completely if it is a small napkin. Or in half， lengthwise （纵向地） ，if it is a large dinner napkin.
If you need to leave the table during the meal， place your napkin on your chair as a signal to your server that you will be returning. Once the meal is over， place your napkin neatly on the table to the right of your dinner plate. Do not refold it.
Use a napkin only for your mouth. Never use it for your nose， face or forehead. Use of utensils （餐具）
Start with the knife， fork or spoon furthest from your plate， and work your way in， using one utensil for each course. If soup is served， remember to spoon away from yourself. This helps stop the drips. Do not put the entire soup spoon in your mouth. Instead， fill a soup spoon about 75 per cent with soup， and sip（啜饮）it from the side noiselessly.
After finishing dinner， place the knife and fork parallel to one another across the plate with the knife blade facing inward toward the plate.
Using your fingers
Here's a list of finger foods： sandwiches， cookies， small fruits or berries with stems， French fries and potato chips， and hamburgers.
Chew（咀嚼）with your mouth closed and don't make noise； don't talk with your mouth full. Bread must be broken with your hands. It is never cut with a knife.
Don't pick something Out of your teeth. Instead， excuse yourself to the bathroom. If possible， try not to cough at the table. Do not put your elbows （肘） on the table. In France， it is essential to have both hands above the table at the same time. Do not put bones or anything else on the table. Things that are not eaten should be put on your plate.
Which utensil is used first？（）A
The knifeB
The forkC
The spoonD
The one farthest from the plate
考题
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.
考题
单选题You issued the following statement in your SQL*Plus session： SQLALTER SESSION ENABLE RESUMABLE TIMEOUT 600； Which operation is neither suspended nor resumed using the Automatic Resumable Allocation feature in your database？（）A
creating a table in your schema and you exceed your allocated space quota on the tablespaceB
executing a long query that involves a sort operation and the statement runs out of temporary spaceC
loading data into tables by using the SQL*Loader and the number of extents in the table reaches the maximum limitD
creating a table in a dictionary-managed tablespace with an explicit MAXEXTENTS setting which results in an out of space error
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多选题A warehouse fact table in your Oracle 12c Database is range-partitioned by month and accessed frequently with queries that span multiple partitions The table has a local prefixed, range partitioned index. Some of these queries access very few rows in some partitions and all the rows in other partitions, but these queries still perform a full scan for all accessed partitions. This commonly occurs when the range of dates begins at the end of a month or ends close to the start of a month. You want an execution plan to be generated that uses indexed access when only a few rows are accessed from a segment, while still allowing full scans for segments where many rows are returned. Which three methods could transparently help to achieve this result?（）AUsing a partial local Index on the warehouse fact table month column with indexing disabled to the table partitions that return most of their rows to the queries.BUsing a partial local Index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.CUsing a partitioned view that does a UNION ALL query on the partitions of the warehouse fact table, which retains the existing local partitioned column.DConverting the partitioned table to a partitioned view that does a UNION ALL query on the monthly tables, which retains the existing local partitioned columnEUsing a partial global index on the warehouse fact table month column with indexing disabling for the table partitions that return most of their rows to the queries.FUsing a partial global index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.
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单选题Putting your mobile phone on a restaurant table may make your friends think ______.A
you prefer to talk to your friends at the table.B
you value your calls more than your friends.C
you are enjoying the company of your friends.D
you are polite and considerate of your friends.
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单选题On Monday， you dropped the DEPT table from your schema and then you re/x7fcreated 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 systemgenerated 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 withthe 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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单选题Good Table Manners
Manners play an important part in making a favorable impression at the dinner table. Here are some general rules： Napkin （餐巾） use
The meal begins when the host unfolds his or her napkin. This is your signal to do the same， so place your napkin on your lap. Unfold it completely if it is a small napkin. Or in half， lengthwise （纵向地） ，if it is a large dinner napkin.
If you need to leave the table during the meal， place your napkin on your chair as a signal to your server that you will be returning. Once the meal is over， place your napkin neatly on the table to the right of your dinner plate. Do not refold it.
Use a napkin only for your mouth. Never use it for your nose， face or forehead. Use of utensils （餐具）
Start with the knife， fork or spoon furthest from your plate， and work your way in， using one utensil for each course. If soup is served， remember to spoon away from yourself. This helps stop the drips. Do not put the entire soup spoon in your mouth. Instead， fill a soup spoon about 75 per cent with soup， and sip（啜饮）it from the side noiselessly.
After finishing dinner， place the knife and fork parallel to one another across the plate with the knife blade facing inward toward the plate.
Using your fingers
Here's a list of finger foods： sandwiches， cookies， small fruits or berries with stems， French fries and potato chips， and hamburgers.
Chew（咀嚼）with your mouth closed and don't make noise； don't talk with your mouth full. Bread must be broken with your hands. It is never cut with a knife.
Don't pick something Out of your teeth. Instead， excuse yourself to the bathroom. If possible， try not to cough at the table. Do not put your elbows （肘） on the table. In France， it is essential to have both hands above the table at the same time. Do not put bones or anything else on the table. Things that are not eaten should be put on your plate.
Where is the napkin normally placed during the meal？（）A
On your chairB
On the tableC
On your lapD
On your plate
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