Which of the following is TRUE about SQL Auto Increment?
It increments the unique number automatically.
It decrements the unique number automatically.
It keeps the unique number constant
None of the above
Correct Answer :
A. It increments the unique number automatically.
SQL Auto Increment increments the unique number automatically.
Related Questions
Rules that are needed to be followed in SET Operators in SQL are
All columns must be identical in number and order.
There must be compatibility between data types.
Both A and B
None of the above
____ function extract characters from the text field.
LEN()
NOW()
MID()
FORMAT()
When SELECT statements used to create Views contain ____ clauses, the views cannot be updated.
JOIN
HAVING
GROUP BY
All of the above
SQL has the advantage of?
SQL require a lot of programming.
SQL provides High-Speed Query Processing.
SQL follows the standard languages of ANSI and ISO.
SQL is easily portable.
Which of the following is the type of SQL Injection attack?
It inserts the data
It updates the data
It deletes the data
All of the above
Local Temp Variable is used with which sign?
?
@
#
&
When two or more columns are combined to be used to uniquely identify each row in the table, it is known as -
Primary Key
Unique Key
Composite Key
Foreign Key
To get the table's previous permanent status, use the ____ command.
Commit
Transaction
Rollback
None of the above
What does UCASE() function do?
Converts database field to uppercase
Converts database field to lowercase
Returns the length of the text field
Returns the current date and time
In the script field, script is found by entering the
Script Name
Script Number
Script ID
Script Symbol
What does the COMMIT Statement do?
The data specified in this table or view is reported in this SQL statement.
Changes made in the SQL database transaction are permanently saved using this SQL statement.
Specify the columns of the table in this SQL statement to return distinct values.
By running this SQL statement, the transaction will be undone and the operations not yet saved to the SQL database will be undone.
In order to remove an index, we need to use which command?
REMOVE
DELETE
DROP
DEL
GROUP BY clause is placed before which clause in SQL?
HAVING
WHERE
ORDER BY
FROM
SQL indexes speed up the execution time of which statement(s)?
SELECT
WHERE
Both A and B
None of the above
The numerical values of two ___ of the ___ table can be easily subtracted using SQL Subtraction Operator.
Rows, same
Columns, same
Rows, different
Columns, different
What is the difference between DELETE and TRUNCATE statements?
DELETE statement free up the space kept in check by the table whereas TRUNCATE statement does not free up the space kept in check by the table.
DELETE statement does not free up the space kept in check by the table whereas TRUNCATE statement free up the space kept in check by the table.
DELETE statement only deletes rows from the table whereas TRUNCATE statement can only delete columns from the table.
DELETE statement only deletes columns from the table whereas TRUNCATE statement can only delete rows from the table.
Output returned by the Scalar functions is/are -
Single Value
Multiple Value
Two Values
None of the above
Types of SQL Commands are
DDL
DML
DCL
All of the above
Full form of LCASE is -
Low case
Letter case
Light case
Lower case
Host-based IDS can be used to monitor
Web server logs
When something weird occurs
Both A) and B)
None of the above
Which function returns the largest value of the column?
MIN()
MAX()
LARGE()
AVG()
Comments whose starting and ending lines are different are known as
Inline Comments
Multi-line Comments
Single Line Comments
Varied line Comments
Which of the following is TRUE about TCL?
Transactions can be saved to the database and rolled back with the help of TCL commands in SQL.
There will be certain privileges that each user has; consequently, the data can be accessed by them using TCL.
Our data is stored in a table that is described by the schema, thus TCL commands deal with the schema.
SQL TCL commands can be used to perform any kind of retrieval or manipulation of the data present in SQL tables.
Select the correct statement.
TRUNCATE TABLE is faster than DELETE TABLE statement.
TRUNCATE TABLE uses fewer resources than DELETE TABLE statement.
Both A) and B)
None of the above
ROUND function consists of ___ parameters?
One
Two
Three
Four
Whenever a sub query appears in SQL, it is enclosed within ____ and placed to the ____ of the SQL operators.
Brackets, Left
Brackets, Right
Parenthesis, Left
Parenthesis, Right
SQL EXCEPT statement behaves similar to _____operator in mathematics.
Sum
Multiply
Minus
Divide
The SQL Modulus Operator returns the,
Quotient
Percentage
Sum
Reminder
BETWEEN Operator returns the TRUE value if the column value is
<=Value1 & >=Value2
<=Value1 & <=Value2
>=Value1 & >=Value2
>=Value1 & <=Value2
Which of the following is TRUE about Savepoint command?
A transaction is marked in a table by this TCL command.
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.
In order to rollback part of a table rather than the entire table, a savepoint is useful.
All of the above