Using the SQL first() function, one can return the ____ value of the selected column.
First
Second
Third
Last
Correct Answer :
A. First
Using the SQL first() function, one can return the first value of the selected column.
Related Questions
When an expression includes ___ SQL operator(s), the sequence in which they are evaluated is known as the SQL operator's precedence.
0
1
Multiple
NULL
BETWEEN Operator returns the TRUE value if the column value is
<=Value1 & >=Value2
<=Value1 & <=Value2
>=Value1 & >=Value2
>=Value1 & <=Value2
Transaction is able to control the following
Transaction
Commit
Rollback
All of the above
SQL has the disadvantage of?
SQL is cheap.
SQL interface is simple.
Both A and B.
None of the above.
In order to format, how the column should be displayed, which function is used?
FORM()
DISPLAY()
COL()
FORMAT()
What is the default length of any data type in the CAST function?
10
20
30
40
What is the syntax of SQL CAST Function?
CAST (expression AS [data type])
CAST (expression IN [data type])
CAST (expression TO [data type])
CAST (expression FOR [data type])
The table records can be retrieved using which command?
RETRIEVE
SELECT
CREATE
ALTER
Select the correct order of precedence among the following?
OR > NOT > + > **
NOT > OR > ** > +
** > + > OR > NOT
** > + > NOT > OR
It is possible to use LIKE clauses with
Strings
Numbers
Both A. and B.
None of the above
Select the correct type(s) of SQL Comments.
Inline Comments
Single Line Comments
Multi-line Comments
All of the above
Why index is important in SQL?
The large database can be searched quickly with SQL Indexes.
The concept below is a quick way to include different values in those columns.
A smaller table may not recognize the performance of an index when used with an index.
All of the above
Which syntax is correct for RENAME DATABASE in SQL?
RENAME old_database_name TO new_database_name;
RENAME DATABASE old_database_name TO new_database_name;
ALTER old_database_name MODIFY NAME = new_database_name;
ALTER DATABASE old_database_name MODIFY NAME = new_database_name;
What does the ROLLBACK Statement do?
Specify the columns of the table in this SQL statement to return distinct values.
Changes made in the SQL database transaction are permanently saved using this SQL statement.
By running this SQL statement, the transaction will be undone and the operations not yet saved to the SQL database will be undone.
An index is created in a SQL database table with this SQL statement.
Which statement is TRUE about the WHERE Clause?
In order to retrieve rows, WHERE Clause is used.
In order to group the rows, WHERE Clause is used.
In order to select the defined groups, WHERE Clause is used.
In order to return the rows, WHERE Clause is used.
Which of the following statement is TRUE about DISTINCT Clause?
It cannot ignore the NULL values
It can ignore the NULL values
Its query can return multiple values
None of the above
In SQL, Like is a ____ operator.
Relational
Logical
Additional
Unique
What does task list consist of in SQL Script?
Import
Show Quotas
Manage Results
All of the above
In SQL, which statement can help in changing the name of the table?
RENAME
ALTER
Both A) and B)
None of the above
Savepoint command is used with _____ command.
Commit
Transaction
Rollback
None of the above
SQL indexes speed up the execution time of which statement(s)?
SELECT
WHERE
Both A and B
None of the above
Scripts ____ from various workspaces can be imported through import.
Exported
Imported
Changed
Saved
In order to sort the records according to the columns, which clause is used?
HAVING
GROUP BY
ORDER BY
None of the above
In the case of ____ Independence Rule, Physical independence of data to access the database is a requirement for a database or an application.
Physical Data
Logical Data
Integrity
Distribution
What does the DISTINCT Clause do?
Specify the columns of the table in this SQL clause to return distinct values.
By executing this SQL statement, all records in the SQL database will be deleted.
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.
____ and ____constraints form the core of the PRIMARY KEY constraint.
NOT NULL , CHECK
NOT NULL , DEFAULT
NOT NULL , FOREIGN KEY
NOT NULL , UNIQUE
If multiple columns are used as Primary Key, it is known as
Unique
Composite
Foreign
None of the above
By default, TIME data type stores time in which format?
MM:HH:SS;
SS:HH:MM;
HH:SS:MM;
HH:MM:SS;
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
Select the syntax of Single Line Comment.
.
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