BÀI KIỂM TRA ỨNG VIÊN TRIỂN KHAI & HELPDESK

What does SQL stand for?

• Strong Question Language

• Structured Query Language

• Structured Question Language

Which SQL statement is used to extract data from a database?

• OPEN

• SELECT

• EXTRACT

• GET

Which SQL statement is used to update data in a database?

• SAVE AS

• UPDATE

• SAVE

• MODIFY

Which SQL statement is used to delete data from a database?

• DELETE

• REMOVE

• COLLAPSE

• DROP

Which SQL statement is used to insert new data in a database?

• INSERT NEW

• ADD RECORD

• INSERT INTO

• ADD NEW

With SQL, how do you select a column named "FirstName" from a table named "Persons"?

• SELECT FirstName FROM Persons

• EXTRACT FirstName FROM Persons

• SELECT Persons.FirstName

With SQL, how do you select all the columns from a table named "Persons"?

• SELECT * FROM Persons

• SELECT [all] FROM Persons

• SELECT Persons

• SELECT *.Persons

With SQL, how do you select all the records from a table named "Persons" where the value of the column "FirstName" is "Peter"?

• SELECT [all] FROM Persons WHERE FirstName='Peter' 

• SELECT * FROM Persons WHERE FirstName<>'Peter'

• SELECT * FROM Persons WHERE FirstName='Peter'  

• SELECT [all] FROM Persons WHERE FirstName LIKE 'Peter'

With SQL, how do you select all the records from a table named "Persons" where the value of the column "FirstName" starts with an "a"?

• SELECT * FROM Persons WHERE FirstName LIKE 'a%'  

• SELECT * FROM Persons WHERE FirstName LIKE '%a'

• SELECT * FROM Persons WHERE FirstName='%a%'

• SELECT * FROM Persons WHERE FirstName='a'

The OR operator displays a record if ANY conditions listed are true. The AND operator displays a record if ALL of the conditions listed are true

• False    

• True