A single unit of work for all commands executed consecutively is known as-
Transaction
Commit
Rollback
Control
Correct Answer :
A. Transaction
A single unit of work for all commands executed consecutively is known as Transaction.
Related Questions
What will be the output of the below SQL statement?
25
26
24
20
In order to insert a row directly in the table, which command is used?
INSERT IN
INSERT INSIDE
INSERT UNDER
INSERT INTO
Which clause is needed in CTE SQL syntax?
FOR
AS
WITH
TO
In the relational database, in order to modify index, we need to use which command?
ALTER
MODIFY
UPDATE
ADD
What does the DESCRIBE Statement do?
In this SQL statement, the data or records are inserted into an existing database table. One query statement can insert multiple records simultaneously using this statement.
By executing this SQL statement, all records in the SQL database will be deleted.
Specify the columns of the table in this SQL statement to return distinct values.
The data specified in this table or view is reported in this SQL statement.
What is the work of DELETE command?
A single or multiple rows can be accessed using this command from one or more tables of a database. Using the WHERE clause with this command is also possible.
Database data can be updated or changed using this command.
Database objects such as tables, table views, and other objects can be deleted using this command.
Using this command, you can remove or erase recorded information from a database table.
TINYTEXT can hold the maximum length of ___ characters?
254
255
256
257
____ function extract characters from the text field.
LEN()
NOW()
MID()
FORMAT()
Transaction is able to control the following
Transaction
Commit
Rollback
All of the above
Primary keys can be contained in a table only ____?
Once
Twice
Thrice
None of the above
Which statement is used to select the database in Oracle?
USE
SELECT
RENAME
None of the above
Determine the correct SQL command?
CREATE
UPDATE
DELETE
All of the above
Name of the control in SQL Script
Script
Owner
Opinion
All of the above
Using the DELETE Query from the CRUD Operator, we can delete
Only one row
All the rows
Only two rows
None of the above
In CRUD Operator, U is an acronym of
Upper
Unique
Update
Uppercase
What is the work of SELECT command?
Database objects such as tables, table views, and other objects can be deleted using this command.
Database objects such as tables, table views, and other objects can be deleted using this command.
One or more rows from one or more tables of the database can be accessed with this command. Using the WHERE clause with this command is also possible.
It enables you to create new databases, tables, table views, and other objects using this command.
To get the table's previous permanent status, use the ____ command.
Commit
Transaction
Rollback
None of the above
A single unit of work for all commands executed consecutively is known as-
Transaction
Commit
Rollback
Control
SQL has the disadvantage of?
SQL is cheap.
SQL interface is simple.
Both A and B.
None of the above.
Which of the following constraints are TRUE to be put in Password system?
One uppercase character must be included in the password.
An eight-character minimum password is required.
At least one symbol must appear in the password.
All of the above
Select the correct syntax for Multi-line Comments.
//*Line1
Line2*//
/*Line1
Line2/*
In order to build a link between two tables, which key is used?
Primary
Foreign
Composite
Unique
NULL means
ZERO
-1
1
Empty
Full form of TCL is -
Transaction Common Language
Transaction Commit Language
Transaction Concatenate Language
Transaction Control Language
What does the UPDATE Statement do?
By deleting the stored data, this SQL statement deletes the database.
A new table in SQL is created using this SQL statement.
The stored data in the SQL database is changed or modified by this SQL statement.
Columns in the SQL database can be created, deleted, or modified with this SQL statement.
Select the correct statement.
With the DDL commands, any structural changes can be made to the table, including creation, deletion, and alteration.
With the DML commands, any structural changes can be made to the table, including creation, deletion, and alteration.
With the DCL commands, any structural changes can be made to the table, including creation, deletion, and alteration.
With the TCL commands, any structural changes can be made to the table, including creation, deletion, and alteration.
Which of the following clause cannot be used in SQL sub queries?
GROUP BY
ORDER BY
DELETE
FROM
Commands that come under TCL is/are -
COMMIT
ROLLBACK
SAVEPOINT
All of the above
What does the following statement do?
Finds any values that start with a and ends with o
Finds any values whose first character is a and third character is o
Both A. and B.
None of the above
Select the correct constraint in SQL?
NOT NULL
CHECK
DEFAULT
All of the above