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− | | + | {{db-g7}} |
− | This page is to efficiently manage our group assignments!
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− | == Member List ==
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− | *[mailto:yjeong@learn.senecac.on.ca,?subject=dbs501,symoon@learn.senecac.on.ca,?subject=dbs501,lzhou@learn.senecac.on.ca,?subject=dbs501 Email All]
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− | {| class="wikitable sortable" border="1" cellpadding="5" | |
− | ! First Name !! Last Name !! Student ID !! Learn e-mail !! Phone
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− | |-
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− | |YuJin ||Jeong|| 048 - 056 - 097 ||[mailto:yjeong@learn.senecac.on.ca?sujbect=dbs501 yjeong]|| (647) 863 - 5555
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− | |-
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− | |Seung Yeon||Moon || - ||[mailto:symoon@learn.senecac.on.ca?subject=dbs501 symoon] ||(647) 678 - 6511
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− | |Li Shi|| Zhou || 057 - 268 - 070 || [mailto:lzhou@learn.senecac.on.ca?subject=dbs501 lzhou] || (416) 887 - 6758
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− | |}
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− | =Assignment 1 (worth 10%)=
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− | ==Due Date==
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− | Friday, October 21st, X:XXpm
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− | ==Description==
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− | [https://cs.senecac.on.ca/~nconkic/as1.doc Assignment1]
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− | ==Solution - Example ==
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− | | |
− | ===1.===
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− | ''YuJin''
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− | <pre>
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− | SELECT department_id, department_name,
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− | RPAD(TRIM(NVL(city, 'Not Assinged Yet')), 25, ' ') "City",
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− | COUNT(DISTINCT job_id) "# of Jobs"
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− | FROM employees
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− | RIGHT OUTER JOIN departments USING (department_id)
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− | LEFT OUTER JOIN locations USING (location_id)
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− | GROUP BY department_id, department_name, city;
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− | | |
− | </pre>
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− | ''Seung Yeon''
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− | <pre>
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− | SELECT department_id, department_name, SUBSTR(NVL(city,'Not Assigned Yet'),1,25) City,
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− | COUNT(DISTINCT job_id) "# of Jobs"
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− | FROM locations l RIGHT OUTER JOIN departments d
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− | USING (location_id)
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− | LEFT OUTER JOIN employees e
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− | USING (department_id)
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− | GROUP BY department_id, department_name, city
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− | /
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− | </pre>
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− | ''Li Shi''
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− | <pre>
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− | select department_id, department_name, substr(nvl(city,'Not Assigned Yet'),1,25) City,
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− | count(distinct job_id) "# of Jobs"
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− | from employees right outer join departments
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− | using (department_id)
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− | left outer join locations
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− | using (location_id)
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− | group by department_id, department_name, city
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− | </pre>
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− | | |
− | ''FINAL''
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− | <pre>
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− | SELECT department_id, department_name,
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− | SUBSTR(NVL(city, 'Not Assinged Yet'),1, 25) "City",
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− | COUNT(DISTINCT job_id) "# of Jobs"
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− | FROM employees
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− | RIGHT OUTER JOIN departments USING (department_id)
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− | LEFT OUTER JOIN locations USING (location_id)
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− | GROUP BY department_id, department_name, city;
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− | | |
− | </pre>
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− | =Assignment 2 (worth 10%)=
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− | ==Due Date==
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− | Friday, December 2nd, X:XXpm
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− | | |
− | ==Description==
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− | [https://cs.senecac.on.ca/~nconkic/as2.doc Assignment2]
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− | | |
− | ==Solution==
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