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SELECT dname, ename

FROM Dept D, EMP E
WHERE E.deptno=D.deptno AND
LOWER(loc) LIKE '%ll%';

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FROM Dept D NATURAL JOIN Emp E
WHERE LOWER(loc) LIKE '%ll%';

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Składnia dotychczasowa

SELECT D.dname, D.loc || ' ' || E.ename

Name, E.hiredate

FROM Emp E, Dept D
WHERE E.deptno = D.deptno
AND job = ‘SALESMAN';

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Składnia ANSI

SELECT D.dname, D.loc || ' ' || E.ename,

E.hiredate

FROM Emp E JOIN Dept D USING(depno)
WHERE E.job = ‘SALESMAN';

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Poł czenie INNER JOIN ... ON

Składnia ANSI

SELECT D.dname, E.ename
FROM Emp E
INNER JOIN Dept D ON
(E.depno = D.deptno)
WHERE E.job = ‘S%’;


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