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Given a table salary, such as the one below, that has m=male and f=female values. Swap all f and m values (i.e., change all f values to m and vice versa) with a single update statement and no intermediate temp table. |
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Note that you must write a single update statement, DO NOT write any select statement for this problem. |
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Example: |
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| id | name | sex | salary | |
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|----|------|-----|--------| |
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| 1 | A | m | 2500 | |
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| 2 | B | f | 1500 | |
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| 3 | C | m | 5500 | |
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| 4 | D | f | 500 | |
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After running your update statement, the above salary table should have the following rows: |
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| id | name | sex | salary | |
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|----|------|-----|--------| |
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| 1 | A | f | 2500 | |
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| 2 | B | m | 1500 | |
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| 3 | C | f | 5500 | |
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| 4 | D | m | 500 | |
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