SQL Answers Exercise 10-4

Exercise 10.4

(1) From the person table, display all the persons with a first name of roger:

SELECT lastname FROM person WHERE firstname = ‘roger’

(2) From the person table, display all the persons with an enrolment date greater than 2003-12-01

SELECT lastname FROM person WHERE enrollmentdate > ‘2003-12-01’

NOTE : with dates the best way to represent dates in php and storing them in database is to use the format of yyyy-mm-dd This format is a universal format.

(3) From the person table display all the persons with no hirehdate

SELECT * FROM person WHERE hiredate IS NOT NULL;

(4) From the person table display all the persons whose last name starts with a letter a

SELECT * FROM person WHERE `lastname` LIKE ‘a%’

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