Tag: technology

Questions Related to technology

Which view should a user query to display the columns associated with the constraints on a table owned by the user?
technology programming languages

  1. USER_CONSTRAINTS

  2. USER_OBJECTS

  3. ALL_CONSTRAINTS

  4. USER_CONS_COLUMNS

  5. USER_COLUMNS

Show answer
Correct Option: D

The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this?
technology programming languages

  1. GRANT select ON dept TO ALL_USERS;

  2. GRANT select ON dept TO ALL;

  3. GRANT QUERY ON dept TO ALL_USERS

  4. GRANT select ON dept TO PUBLIC;

  5. GRANT QUERY ON dept TO PUBLIC;

Show answer
Correct Option: D

Which constraint can be defined only at the column level?

technology programming languages

  1. UNIQUE

  2. NOT NULL

  3. CHECK

  4. PRIMARY KEY

  5. FOREIGN KEY

Show answer
Correct Option: B

AI Explanation

To answer this question, you need to understand the different types of constraints that can be defined in a database.

Option A) UNIQUE - This option is incorrect because the UNIQUE constraint can be defined at both the column level and the table level. It ensures that the values in a specific column or combination of columns are unique.

Option B) NOT NULL - This option is correct because the NOT NULL constraint can only be defined at the column level. It ensures that a column must have a value and cannot be left empty or null.

Option C) CHECK - This option is incorrect because the CHECK constraint can be defined at both the column level and the table level. It allows you to specify a condition that must be satisfied for the data in a column.

Option D) PRIMARY KEY - This option is incorrect because the PRIMARY KEY constraint can be defined at both the column level and the table level. It uniquely identifies each row in a table and can be defined on one or more columns.

Option E) FOREIGN KEY - This option is incorrect because the FOREIGN KEY constraint can be defined at both the column level and the table level. It establishes a relationship between two tables based on a common column.

The correct answer is B) NOT NULL. This option is correct because the NOT NULL constraint can only be defined at the column level, ensuring that the column must have a value and cannot be null.

In which cases would you use an outer join?
technology programming languages

  1. The tables being joined have NOT NULL columns.

  2. The tables being joined have only matched data.

  3. The columns being joined have NULL values.

  4. The tables being joined have only unmatched data.

  5. The tables being joined have both matched and unmatched data.

  6. Only when the tables have a primary key/foreign key relationship.

Show answer
Correct Option: C,E

Which of the following is not a joke from Chet Haase's humor blog:
technology programming languages

  1. What do you call it when a chip manufacturer loses money? -- A cash miss.

  2. What do you call someone who has to use a dull web application? --Bored to tiers.

  3. What does a hungry vegetarian say? --"I´m so hungry, I could eat a tree."

  4. Always wear protective goggles when operating a weed-eater, working with a power tool, or teasing your wife.

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Correct Option: C

Does a multi-cube contain data?
technology

  1. True

  2. False

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Correct Option: B

The cell editor...
technology

  1. ...is always available to make cell-specific definitions in the query definition

  2. ...is available to make cell-specific definitions in the query definition when two structures make up the definition.

  3. ...allows you to determine the format of a cell in the BEx Report Designer.

  4. None of the above

Show answer
Correct Option: A,B

What is the Tcode used for viewing the Background processing Jobs.
technology

  1. SM36

  2. SM37

  3. SM64

  4. SE38

Show answer
Correct Option: B

Given: 11. public static void test(String str) { 12. int check = 4; 13. if (check = str.length()) { 14. System.out.print(str.charAt(check -= 1) +“, “); 15. } else { 16. System.out.print(str.charAt(0) + “, “); 17. } 18. } and the invocation: 21. test(”four”); 22. test(”tee”); 23. test(”to”); What is the result?

technology programming languages

  1. r, t, t,

  2. r, e, o,

  3. Compilation fails.

  4. An exception is thrown at runtime.

Show answer
Correct Option: C

Given: 11. public static void test(String str) { 12. int check = 4; 13. if (check = str.length()) { 14. System.out.print(str.charAt(check -= 1) +“, “); 15. } else { 16. System.out.print(str.charAt(0) + “, “); 17. } 18. } and the invocation: 21. test(”four”); 22. test(”tee”); 23. test(”to”); What is the result?

technology programming languages

  1. r, t, t,

  2. r, e, o,

  3. Compilation fails.

  4. An exception is thrown at runtime.

Show answer
Correct Option: C