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Given the following two tables: TAB1 C1 C2 1 Antarctica 2 Africa 3 Asia 4 Australia TAB2 CX CY 5 Europe 6 North America 7 South America Which of the following SQL statements will insert all rows found in table TAB2 into table TAB1?（）
- A、INSERT INTO tab1 SELECT cx, cy FROM tab2
- B、INSERT INTO tab1 VALUES (tab2.cx, tab2.cy)
- C、INSERT INTO tab1 VALUES (SELECT cx, cy FROM tab2)
- D、INSERT INTO tab1 (c1, c2) VALUES (SELECT cx, cy FROM tab2)
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更多 “ Given the following two tables: TAB1 C1 C2 1 Antarctica 2 Africa 3 Asia 4 Australia TAB2 CX CY 5 Europe 6 North America 7 South America Which of the following SQL statements will insert all rows found in table TAB2 into table TAB1?（）A、INSERT INTO tab1 SELECT cx, cy FROM tab2B、INSERT INTO tab1 VALUES (tab2.cx, tab2.cy)C、INSERT INTO tab1 VALUES (SELECT cx, cy FROM tab2)D、INSERT INTO tab1 (c1, c2) VALUES (SELECT cx, cy FROM tab2)” 相关考题
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What is true about joining tables through an equijoin? ()
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Given the following two AS path regular expressions: "65000＋ (65001|65002)" "65000(65001|65002){0,}" Which AS path matches both regular expressions?()
A. 65000 65001 65002B. 65000 65002C. 65001 65000D. 65001 65002
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Given the following tables: CONTINENTS ID NAME COUNTRIES1 Antarctica 02 Africa 533 Asia 474 Australia 145 Europe 436 North America 237 South America 12REGION ID LOCATION 1 East 2 WestHow many rows would be returned using the following statement? SELECT location FROM continents, region（）A.2B.7C.9D.14
考题
In which of the following situations should correlation names be used?()
A.A table referenced in the FROM clause has no indexed column.B.The table referenced in the FROM clause has more than 200 columns.C.Two or more tables in the FROM clause have identical column names.D.The FROM clause contains two or more tables in the SELECT statement.
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In which of the following situations should correlation names be used?（）A、A table referenced in the FROM clause has no indexed column.B、The table referenced in the FROM clause has more than 200 columns.C、Two or more tables in the FROM clause have identical column names.D、The FROM clause contains two or more tables in the SELECT statement.
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What are two reasons to create synonyms?（）A、You have too many tables.B、Your tables are too long.C、Your tables have difficult names.D、You want to work on your own tables.E、You want to use another schema's tables.F、You have too many columns in your tables.
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Given the following tables: CONTINENTS ID NAME COUNTRIES 1 Antarctica 0 2 Africa 53 3 Asia 47 4 Australia 14 5 Europe 43 6 North America 23 7 South America 12 REGION ID LOCATION 1 East 2 West How many rows would be returned using the following statement? SELECT location FROM continents, region（）A、2B、7C、9D、14
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Given the following two tables: TAB1 C1 C2 A 11 B 12 C 13 TAB2 CX CY A 21 C 22 D 23 The following results are desired: C1 C2 CX CY A 11 A 21 C 13 C 22 -- --D 23 Which of the following queries will yield the desired results?（）A、SELECT * FROM tab1 INNER JOIN tab2 ON c1=cxB、SELECT * FROM tab1 LEFT OUTER JOIN tab2 ON c1=cxC、SELECT * FROM tab1 FULL OUTER JOIN tab2 ON c1=cxD、SELECT * FROM tab1 RIGHT OUTER JOIN tab2 ON c1=cx
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Given the following two AS path regular expressions: "65000+ (65001|65002)" "65000(65001|65002){0,}" Which AS path matches both regular expressions?（）A、65000 65001 65002B、65000 65002C、65001 65000D、65001 65002
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A bitmap join index is defined as（）.A、An index used to join two bitmap indexes on a table.B、A bitmap index created for the join of two or more tables.C、A bitmap index created on the join of two or more indexes.D、A bitmap index created on the join of two or more indexed-organized tables.
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Temporary tables B
Index-organized tables C
Cluster tables D
Standard Oracle tables
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单选题You design a Business Intelligence （BI） solution by using SQL Server 2008. You plan to create a SQL Server 2008 Reporting Services （SSRS） solution. Developers generate random reports against a data source that contains 200 tables. Power users generate random reports against four of the 200 tables. You need to design a strategy for the SSRS solution to meet the following requirements： ·Uses minimum amount of development effort. ·Provides two sets of tables in SSRS to the developers group and the power users group. Which strategy should you use？（）A
Create two Report Builder models.Include the four frequently used tables in the first model and all the tables in the second model.B
Create a Report Builder model by using all the tables.Create a perspective within the model to use only the four frequently used tables.C
Create a Report Builder model by using all the tables. Create two folders.Place the four frequently used tables in the first folder and the remaining tables in the second folder.D
Create two Data Source Views.Include all the tables in one Data Source View and the four frequently used tables in the other Data Source View.Create two Report Builder models so that each model uses one of the Data Source Views.
考题
单选题Which two terms can best describe the following pairs of words: table—tables, day + break—daybreak.A
inflection and compoundB
compound and derivationC
inflection and derivation
考题
单选题What is true about joining tables through an equijoin?（）A
You can join a maximum of two tables through an equijoin.B
You can join a maximum of two columns through an equijoin.C
You specify an equijoin condition in the SELECT or FROM clauses of a SELECT statement.D
To join two tables through an equijoin, the columns in the join condition must be primary key and foreign key columns.E
You can join n tables (all having single column primary keys) in a SQL statement by specifying a minimum of n-1 join conditions.
考题
单选题You discover that your Recycle Bin contains two tables with the same name, MY_TABLE. You also have a table named MY_TABLE in your schema.You execute the following statement: FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2; What will be the result of executing this statement?（）A
One of the tables is recovered from the Recycle Bin using a First In First Out (FIFO) approach.B
One of the tables is recovered from the Recycle Bin using a Last In First Out (LIFO) approach.C
Both the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.D
None of the tables are recovered from the Recycle Bin, and the statement returns an error.
考题
单选题Given the following two AS path regular expressions: "65000+ (65001|65002)" "65000(65001|65002){0,}" Which AS path matches both regular expressions?（）A
65000 65001 65002B
65000 65002C
65001 65000D
65001 65002
考题
单选题A bitmap join index is defined as（）.A
An index used to join two bitmap indexes on a table.B
A bitmap index created for the join of two or more tables.C
A bitmap index created on the join of two or more indexes.D
A bitmap index created on the join of two or more indexed-organized tables.
考题
单选题Which of the following grammar activities is most communicative?A
Asking the students to read and correct the mistakes in the sentences.B
Asking the students to tell the differences between two pictures in groups.C
Asking the students to make sentences with the given words.D
Asking the students to complete the translation exercises.
考题
多选题What are two reasons to create synonyms? （）AYou have too many tables.BYour tables are too long.CYour tables have difficult names.DYou want to work on your own tables.EYou want to use another schema's tables.FYou have too many columns in your tables.
考题
单选题In which of the following situations should correlation names be used?（）A
A table referenced in the FROM clause has no indexed column.B
The table referenced in the FROM clause has more than 200 columns.C
Two or more tables in the FROM clause have identical column names.D
The FROM clause contains two or more tables in the SELECT statement.
考题
单选题Given the following tables: CONTINENTS ID NAME COUNTRIES 1 Antarctica 0 2 Africa 53 3 Asia 47 4 Australia 14 5 Europe 43 6 North America 23 7 South America 12 REGION ID LOCATION 1 East 2 West How many rows would be returned using the following statement? SELECT location FROM continents, region（）A
2B
7C
9D
14
考题
单选题Given the following tables: CONTINENTS ID NAME COUNTRIES 1 Antarctica 0 2 Africa 53 3 Asia 47 4 Australia 14 5 Europe 43 6 North America 23 7 South America 12 REGION ID LOCATION 1 East 2 West How many rows would be returned using the following statement? SELECT location FROM continents, region（）A
2B
7C
9D
14
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