Each completely correct, and fairly acceptable (with a different executionfexplajn plan) query 10 points Prepaxatory steps: Given a QITEM table, from...

— Each completely correct, and fairly acceptable (with a different executionfexplajn plan) query 10 pointsPrepaxatory steps: a. Given a QITEM table, from the QSALE DB, copy its content into NEWITEM table. b. Make three unrelated but elementary changes {one record update, one new record insert, and one old record delete) making sure you do not leave any duplicates.Provide as many diffcrcnt ways (qucrics) using only.r plain SQL (no triggers, no Transact or PUSQL etc.) to accomplish the following task: -cornpare the tables QITEM and NEWITEM to assess if they are now exactly the same or not.