| 4 |
-- work. It has not been produced, in whole or in part, by another person. |
-- work. It has not been produced, in whole or in part, by another person. |
| 5 |
-- (signed) Andrew Pollock 4137129 |
-- (signed) Andrew Pollock 4137129 |
| 6 |
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| 7 |
SELECT motherid, fatherid, COUNT(personid) AS children |
TTITLE "COMP2400: Assignment 1: Question 5|Andrew Pollock (4137129)" |
| 8 |
FROM parents |
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| 9 |
GROUP BY motherid, fatherid; |
COLUMN Father HEADING "Father" |
| 10 |
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COLUMN Mother HEADING "Mother" |
| 11 |
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COLUMN Children HEADING "Number of|children" |
| 12 |
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| 13 |
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SELECT father.firstname || ' ' || father.surname AS Father, mother.firstname || ' ' || mother.surname AS Mother, COUNT(p.personid) AS children |
| 14 |
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FROM parents p, person mother, person father |
| 15 |
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WHERE p.motherid = mother.personid |
| 16 |
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AND p.fatherid = father.personid |
| 17 |
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GROUP BY father.firstname, father.surname, mother.firstname, mother.surname; |
| 18 |
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| 19 |
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EXIT; |
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