SQL Multiple choices


Total available count: 51
Subject - Databases
Subsubject - SQL

With SQL, how can you return the number of records in the "Persons" table?


 

 

 

 



C


Solution:-

The COUNT() function returns the number of rows that match a specified criterion.

COUNT() Syntax

SELECT COUNT(column_name) FROM table_name WHERE condition;

COUNT() Example is given as follows:
The following SQL statement finds the number of courses:

Example

SELECT COUNT(CourseID) FROM SlghtBook;

 




Next 5 multiple choice(s)

1

With SQL, how can you delete the records where the "FirstName" is "Peter" in the Persons Table?

2

How can you change "Hansen" into "Nilsen" in the "LastName" column in the Persons table?

3

With SQL, how can you insert "Olsen" as the "LastName" in the "Persons" table?

4

With SQL, how can you insert a new record into the "Persons" table?

5

With SQL, how can you return all the records from a table named "Persons" sorted descending by "FirstName"?

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