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Add more to emp-dept exercise.

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Nicolás A. Ortega Froysa 2022-02-23 17:55:39 +01:00
parent 7e13ff581c
commit a5ae238d89
1 changed files with 36 additions and 1 deletions
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37
1/GBD/assignments/ej-emp-dept.sql
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@ -53,4 +53,39 @@ SELECT ename, sal FROM emp
ORDER BY ename ASC, sal DESC;
-- 16
SELECT MAX(sal) FROM emp GROUP BY deptno HAVING deptno IN (10, 20);
SELECT (SELECT MAX(sal) FROM emp WHERE deptno=10) "deptno 10",
(SELECT MAX(sal) FROM emp WHERE deptno=20) "deptno 20" FROM dual;
-- 17
SELECT (SELECT MIN(sal) FROM emp WHERE deptno=10) "min sal depnto 10",
(SELECT COUNT(*) FROM emp WHERE deptno=20) "employees deptno 20",
(SELECT AVG(sal) FROM emp WHERE deptno=30) "avg sal deptno 30" FROM dual;
-- 18
SELECT ename "NOMBRE", sal+NVL(comm, 0) "SALARIO_TOTAL"
FROM emp
WHERE deptno=20 ORDER BY ename;
-- 19
SELECT ename "NOMBRE", sal+NVL(comm, 0) "SALARIO_TOTAL" FROM emp
WHERE deptno=10 AND sal > 2000
UNION
SELECT ename, sal+NVL(comm, 0) FROM emp
WHERE sal > 1200
ORDER BY SALARIO_TOTAL DESC;
-- 20
SELECT deptno, ename FROM emp
WHERE deptno IN (SELECT deptno FROM emp WHERE ename IN ('JAMES', 'SCOTT')) AND
ename NOT IN ('JAMES', 'SCOTT')
ORDER BY deptno, ename;
-- 21
SELECT dname FROM emp JOIN dept ON emp.deptno=dept.deptno GROUP BY dept.dname HAVING COUNT(*) > 4;
-- 23
SELECT deptno, ROUND(AVG(sal), 2) FROM emp
WHERE deptno IN (SELECT DISTINCT deptno FROM emp WHERE job='SALESMAN') GROUP BY deptno;
-- 24
SELECT deptno, COUNT(*) "NUM" FROM emp GROUP BY deptno ORDER BY NUM DESC LIMIT 1;