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Nov 22nd, 2017
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  1. SELECT LNAME, FNAME, ADDRESS FROM EMPLOYEE WHERE EXISTS
  2. (SELECT * FROM WORKS_ON, PROJECT, DEPT_LOCATIONS WHERE SSN=ESSN AND PNO=PNUMBER AND DNO = DNUMBER AND DLOCATION = PLOCATION)
  3. AND NOT EXISTS ( SELECT * FROM WORKS_ON, PROJECT, DEPT_LOCATIONS WHERE SSN = ESSN AND PNO = PNUMBER AND DLOCATION = PLOCATION AND DNUM = DNUMBER)
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