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4

Transaction is able to control the following

A. Transaction

B. Commit

C. Rollback

D. All of the above

Correct Answer :

D. All of the above


Transaction is able to control transaction and rollback or commit.

Related Questions

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4

What is meant by 'SQL is an interactive language'?

A. Learning and understanding SQL is easy

B. It can also be used for communicating with the database.

C. In a few seconds, complex queries can also be answered using this language.

D. All of the above

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4

Using the DELETE Query from the CRUD Operator, we can delete

A. Only one row

B. All the rows

C. Only two rows

D. None of the above

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4

In order to assign a random name to a column or table, which SQL SELECT Clause is used?

A. FROM

B. WHERE

C. HAVING

D. AS

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4

What will be the output of the below SQL statement?

A. 2021-10-06 00:00:00.000

B. 2021-10-06

C. 2021 OCT 06

D. 06-10-2021

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4

Which of the following statement is correct?

A. Comparison Operator has higher precedence than Conjuction Operator.

B. Identity Operator has higher precedence than Multiplication Operator.

C. Both A and B

D. None of the above

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4

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

A. -

B. _

C. !

D. &

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4

In SQL, Like is a ____ operator.

A. Relational

B. Logical

C. Additional

D. Unique

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4

What does COUNT() function returns?

A. Average value

B. Largest value

C. Smallest value

D. Number of rows

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4

BETWEEN Operator returns the TRUE value if the column value is

A. <=Value1 & >=Value2

B. <=Value1 & <=Value2

C. >=Value1 & >=Value2

D. >=Value1 & <=Value2

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4

What is TRUE about the Active/Dynamic Online Catalog based on the relational model in the 12 Codd's Rules?

A. 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.

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

C. Database dictionaries represent the complete logic of all descriptive data, which must be stored online.

D. None of the above

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4

The scalar functions operate on each record ____ in SQL.

A. Dependently

B. Independently

C. Interdependently

D. Intradependently

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4

Which of the following statement is TRUE about Primary Key?

A. Table integrity is not enforced by the primary key.

B. The data in a primary key is always multiple.

C. 900 bytes is the maximum length of a primary key.

D. Null values are allowed in primary keys.

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4

What does the ROLLBACK Statement do?

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

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

C. By running this SQL statement, the transaction will be undone and the operations not yet saved to the SQL database will be undone.

D. An index is created in a SQL database table with this SQL statement.

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4

To connect strings, which function is used

A. CONNECT

B. ADD

C. COMBINE

D. CONCAT

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4

Which statement is not true about SQL?

A. Using SQL in relational databases is all about inserting, updating, and deleting data.

B. Sample data can also be described with the aid of this tool.

C. It helps develop relational database functions, events, and views.

D. A SQL user can also set restrictions and permissions for a table column, a view, and a stored procedure.

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4

____ Clause is used in Parent-child relationship in order to join two or more tables.

A. FROM

B. TO

C. WHERE

D. IN

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4

____ function extract characters from the text field.

A. LEN()

B. NOW()

C. MID()

D. FORMAT()

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4

What is the full form of GUID?

A. Guided Unique Identifier

B. Guided Unique Interpreter

C. Globally Unique Identifier

D. Globally Unique Interpreter

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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.

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4

Which syntax is correct for RENAME DATABASE in MySQL?

A. RENAME old_database_name TO new_database_name;

B. RENAME DATABASE old_database_name TO new_database_name;

C. ALTER old_database_name MODIFY NAME = new_database_name;

D. ALTER DATABASE old_database_name MODIFY NAME = new_database_name;

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4

In case of ____ data, recursive CTE is used?

A. Round

B. Hierarchal

C. Linear

D. None of the above

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4

The SELECT TOP statement shows the limited number of:

A. Rows

B. Columns

C. Tables

D. None of the above

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4

Which one if these is used to put the same value in all the rows?

A. Group by unique column

B. Group by single column

C. Group by one column

D. Group by same value

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4

Which statement is TRUE about the WHERE Clause?

A. In order to retrieve rows, WHERE Clause is used.

B. In order to group the rows, WHERE Clause is used.

C. In order to select the defined groups, WHERE Clause is used.

D. In order to return the rows, WHERE Clause is used.

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4

Which of the following is TRUE about Savepoint command?

A. A transaction is marked in a table by this TCL command.

B. Imagine that you are making a long table, and you want to roll back only to a specific point in the table. You can do this with the savepoint.

C. In order to rollback part of a table rather than the entire table, a savepoint is useful.

D. All of the above

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4

Which of the following are the types of the temp tables?

A. Local Temp

B. Global Temp

C. Both A) and B)

D. None of the above

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4

Which of the following are not MySQL Date and Time Data Type?

A. DATE

B. TIME(fsp)

C. YEAR

D. None of the above

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4

Primary keys can be contained in a table only ____?

A. Once

B. Twice

C. Thrice

D. None of the above

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4

In the script field, script is found by entering the

A. Script Name

B. Script Number

C. Script ID

D. Script Symbol

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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.