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Question
Site any two differences between Single Row Functions and Aggregate Functions.
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Solution
| Single Row Functions | Aggregate Functions |
| Single row functions operate on individual rows and return a single value per row. | Aggregate functions operate on groups of rows and return a single result for each group. |
| It can be used in SELECT, WHERE, and ORDER BY clause. | It can be used in the SELECT clause only. |
UPPER(name) → Converts each name to uppercase |
SUM(salary) → Returns total salary for all or a group of employees |
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| 1 | Anand | XI | 6/6/97 | M | Agra | 430 |
| 2 | Chetan | XII | 7/5/94 | M | Mumbai | 460 |
| 3 | Geet | XI | 6/5/97 | F | Agra | 470 |
| 4 | Preeti | XII | 8/8/95 | F | Mumbai | 492 |
| 5 | Saniyal | XII | 8/10/95 | M | Delhi | 360 |
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| 8 | Nishant | X | 12/6/95 | M | Moscow | 429 |
State the command that will give the output as:
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| Anand |
| Chetan |
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(ii) select name from student where not Class='XI' and Class='XII';
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