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SELECT deptno, empno, ename FROM emp
WHERE empno IN
(SELECT max(empno) FROM emp
WHERE empno < _value_
AND deptno IN (SELECT deptno FROM emp
WHERE empno = _value_)
AND sal >= 5000)
UNION
SELECT deptno, empno, ename FROM emp
WHERE empno = _value_
UNION
SELECT deptno, empno, ename FROM emp
WHERE empno IN
(SELECT MIN(empno) FROM emp
WHERE empno > _value_
AND deptno IN (SELECT deptno FROM emp
WHERE empno = _value_)
AND sal >= 5000)
SELECT deptno, empno, ename FROM emp
WHERE empno IN
(COALESCE((SELECT max(empno) FROM emp
WHERE empno < _value_
AND deptno IN (SELECT deptno FROM emp
WHERE empno = _value_)
AND sal >= 5000),
(SELECT max(empno) FROM emp
WHERE deptno IN (SELECT max(deptno) FROM emp
WHERE deptno < (SELECT deptno FROM emp
WHERE empno = _value_)
AND sal >= 5000))))
UNION
SELECT deptno, empno, ename FROM emp
WHERE empno = _value_
UNION
SELECT deptno, empno, ename FROM emp
WHERE empno IN
(COALESCE((SELECT MIN(empno) FROM emp
WHERE empno > _value_
AND deptno IN (SELECT deptno FROM emp
WHERE empno = _value_)
AND sal >= 5000),
(SELECT min(empno) FROM emp
WHERE deptno IN (SELECT min(deptno) FROM emp
WHERE deptno > (SELECT deptno FROM emp
WHERE empno = _value_)
AND sal >= 5000))))
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