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4

What does the DISTINCT Clause do?

A. Specify the columns of the table in this SQL clause to return distinct values.

B. By executing this SQL statement, all records in the SQL database will be deleted.

C. The data specified in this table or view is reported in this SQL statement.

D. Changes made in the SQL database transaction are permanently saved using this SQL statement.

Correct Answer :

A. Specify the columns of the table in this SQL clause to return distinct values.


Specify the columns of the table in DISTINCT SQL clause to return distinct values.

Related Questions

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4

What is the similarity between CLOB and NCLOB Oracle Large Object Data Types?

A. Both CLOB and NCLOB are used for multibyte national character set data.

B. Both CLOB and NCLOB can range upto 2^32-1 bytes or 4 GB.

C. Both CLOB and NCLOB can range upto 2^32-1 bytes or 8GB.

D. Both CLOB and NCLOB are used for singlebyte and multibyte national character set data.

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4

Local Temp Variable is used with which sign?

A. ?

B. @

C. #

D. &

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4

Commands that comes under DDL is/are

A. CREATE

B. DROP

C. TRUNCATE

D. All of the above

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4

In order to remove an index, we need to use which command?

A. REMOVE

B. DELETE

C. DROP

D. DEL

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4

What is the keyword of the Ascending and Descending?

A. ASCE, DESC

B. ASC, DES

C. ASCE, DES

D. ASC, DESC

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4

Using which SQL Comparison Operator can we find the data that matches our query?

A. SQL Not Equal Operator (!=)

B. SQL Equal Operator (=)

C. SQL Greater Than Operator (>)

D. SQL Less Than Operator (<)

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4

In the database table, data types describe the kind of ___ that it can contain.

A. Table

B. Data

C. Number

D. None of the above

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4

Unique Index is similar to

A. Primary Key

B. Foreign Key

C. Composite Key

D. Alternate Key

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4

Which function is used to obtain the month from the entire data stored in a table's column?

A. DATE

B. TIME

C. MONTH

D. DATE & TIME

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4

A Primary Key is basically a

A. Row

B. Column

C. Table

D. Database

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4

Which of the following statement is correct for SQL Multiplication Operator?

A. SELECT Operand1+Operand2;

B. SELECT Operand1*Operand2;

C. SELECT Operand1**Operand2;

D. SELECT Operand1

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4

In how many parts are the SQL functions are divided into?

A. 1

B. 2

C. 3

D. 4

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4

Following the completion of a transaction, it must be executed to save all the operations performed in the transaction. Here we are talking about which command?

A. REVOKE

B. COMMIT

C. ROLLBACK

D. SAVE

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4

Which of the following is the feature(s) of SQL Auto Increment?

A. In some cases you may not have any unique identifying characteristics in data; therefore, it makes sense to create a Primary Key.

B. Explicitly initializing and modifying the auto-increment value is possible at any time.

C. Record identifiers can easily be created that are unique to each record.

D. All of the above

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4

The ____ operator cannot be used with the sub query, but within it.

A. IN

B. INTO

C. BETWEEN

D. JOIN

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4

To delete table definition and all data from the table, which statement is used?

A. DELETE

B. DROP

C. ALTER

D. None of the above

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4

Which of the following statement(s) is/are TRUE about DCL?

A. The DCL commands in SQL allow us to control which users have access to the data stored in SQL tables.

B. There will be certain privileges that each user has; consequently, the data can be accessed by them.

C. The DCL commands in SQL allow us to grant privileges to a user on the SQL database and its table(s), or revoke privileges that have already been granted.

D. All of the above

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4

With export, you can ____ SQL Scripts from the SQL repositories in your workspace.

A. Export

B. Import

C. Save

D. Exchange

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4

Read in CRUD Operator means

A. To retrieve data

B. To fetch data

C. Both A. and B.

D. None of the above

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4

What does task list consist of in SQL Script?

A. Import

B. Show Quotas

C. Manage Results

D. All of the above

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4

Which of the following is TRUE about The Foundation Rule in the 12 Codd's Rules?

A. Relational databases are required.

B. Databases contain a wide variety of information, and each row and column of each table must hold this information.

C. The primary key value, table name, and column name are characteristics that allow us to access the precise data (atomic value) logically from a relational database.

D. Null values are treated in database records according to this rule.

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4

SQL BETWEEN operators include

A. Starting Value

B. In Between Value

C. Ending Value

D. All of the above

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4

Which of the following is supported in Comprehensive Data SubLanguage Rule in the 12 Codd's Rules?

A. Data Definition

B. View Definition

C. Data Manipulation

D. All of the above

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4

What can be the maximum size of char(n) in SQL Server String Data Type?

A. 7000

B. 8000

C. 9000

D. 10000

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4

Which function is used to extract substrings from the column of the table

A. ROUND()

B. MID()

C. FORMAT()

D. NOW()

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4

Which of the following constraints are TRUE to be put in Password system?

A. One uppercase character must be included in the password.

B. An eight-character minimum password is required.

C. At least one symbol must appear in the password.

D. All of the above

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4

Commands that come under TCL is/are -

A. COMMIT

B. ROLLBACK

C. SAVEPOINT

D. All of the above

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4

Which of the following is a SQL Logical Operator?

A. SQL ALL Operator

B. SQL OR Operator

C. SQL LIKE Operator

D. All of the above

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4

Determine the correct SQL command?

A. CREATE

B. UPDATE

C. DELETE

D. All of the above

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4

In LIKE clause, to represent a single character, _____ is used.

A. -

B. _

C. !

D. &