Question: Q 4 ( 1 0 points ) : Write a SELECT statement that returns three columns: vendor _ id The vendor _ id column from

4 (10

points

)

: Write a SELECT statement that returns three columns:

vendor

_

id The vendor

_

id column from the Vendors table

vendor

_

name The vendor

_

name column from the Vendors table

contact

_

name A concatenation of the vendor

_

contact

_

first

_

name

and vendor

_

contact

_

last

_

name columns with a space

between

Return one row for each vendor whose contact has the same last name as another vendor's

contact. This should return

2

rows. Hint: Use a self

-

join to check that the vendor

_

id columns

aren't equal but the vendor

_

contact

_

last

_

name columns are equal. Sort the result set by

vendor

_

contact

_

last

_

name.

Q4(10 points): Write a SELECT statement that returns three columns: vendor_id

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