Example
A list of all pupils grouped by their pastoral care teacher and ordered by merit points. The list should be ordered by the merit points in descending order.
When we are testing, we should follow a set of stages:
- design
- implementation
- testing: predicted result and actual result
Design
Query Design: Return a list of all pupils grouped by their pastoral care teacher and ordered by their merits points in descending order
Field(s) | First Name, Surname, Pastoral Care Teacher, Merit Points |
Table(s) | Pupil |
Criteria | GROUP BY Pastoral Care Teacher |
Sort Order | Merit Points DESC |
Field(s) |
First Name, Surname, Pastoral Care Teacher, Merit Points |
Table(s) |
Pupil |
Criteria |
GROUP BY Pastoral Care Teacher |
Sort Order |
Merit Points DESC |
Implementation
SELECT firstname, surname, pastoralCareTeacher, meritPoints
FROM Pupil
ORDER BY meritPoints DESC
GROUP BY pastoralCareTeacher;
Testing
Predicted result
The predicted result shows what the developer expects the query to return.
PupilID | First Name | Surname | Class | Pastoral Care Teacher | Merit Points |
0010 | Thomas | Glacney | 1M1 | Miss Armstrong | 91 |
0011 | Frankie | Al-Robeye | 1M2 | Mr Gilchrist | 71 |
0003 | Amy | Jones | 1M1 | Mr Gilchrist | 55 |
0006 | Antonia | Gallagher | 1M2 | Mr Gilchrist | 21 |
0004 | James | McNamee | 1T1 | Mr Harley | 88 |
0009 | Beatrice | Panner | 1T2 | Mr Harley | 77 |
0001 | Zainab | Singh | 1T1 | Mr Harley | 74 |
0007 | Amy | McNamee | 1T1 | Mr Harley | 63 |
0008 | Aysha | Matazinadze | 1T1 | Mr Harley | 45 |
0005 | Pawel | McTavish | 1I1 | Mrs Aitken | 19 |
0002 | David | Boland | 1I2 | Mrs Aitken | 12 |
PupilID | 0010 |
---|---|
First Name | Thomas |
Surname | Glacney |
Class | 1M1 |
Pastoral Care Teacher | Miss Armstrong |
Merit Points | 91 |
PupilID | 0011 |
---|---|
First Name | Frankie |
Surname | Al-Robeye |
Class | 1M2 |
Pastoral Care Teacher | Mr Gilchrist |
Merit Points | 71 |
PupilID | 0003 |
---|---|
First Name | Amy |
Surname | Jones |
Class | 1M1 |
Pastoral Care Teacher | Mr Gilchrist |
Merit Points | 55 |
PupilID | 0006 |
---|---|
First Name | Antonia |
Surname | Gallagher |
Class | 1M2 |
Pastoral Care Teacher | Mr Gilchrist |
Merit Points | 21 |
PupilID | 0004 |
---|---|
First Name | James |
Surname | McNamee |
Class | 1T1 |
Pastoral Care Teacher | Mr Harley |
Merit Points | 88 |
PupilID | 0009 |
---|---|
First Name | Beatrice |
Surname | Panner |
Class | 1T2 |
Pastoral Care Teacher | Mr Harley |
Merit Points | 77 |
PupilID | 0001 |
---|---|
First Name | Zainab |
Surname | Singh |
Class | 1T1 |
Pastoral Care Teacher | Mr Harley |
Merit Points | 74 |
PupilID | 0007 |
---|---|
First Name | Amy |
Surname | McNamee |
Class | 1T1 |
Pastoral Care Teacher | Mr Harley |
Merit Points | 63 |
PupilID | 0008 |
---|---|
First Name | Aysha |
Surname | Matazinadze |
Class | 1T1 |
Pastoral Care Teacher | Mr Harley |
Merit Points | 45 |
PupilID | 0005 |
---|---|
First Name | Pawel |
Surname | McTavish |
Class | 1I1 |
Pastoral Care Teacher | Mrs Aitken |
Merit Points | 19 |
PupilID | 0002 |
---|---|
First Name | David |
Surname | Boland |
Class | 1I2 |
Pastoral Care Teacher | Mrs Aitken |
Merit Points | 12 |
Actual result
The actual result of the query is then recorded. It can be compared to the expected result to make sure that the query has executed as expected.
SQL has encountered a Syntax Error at line 4 (GROUP BY pastoralCareTeacher)