2021-12-29
多文本行转列(pivot)的实现
有这样一张表
| ID | Question | Answer |
| 1 | Q1 Has your problem been Resolved? | Q1A |
| 2 | Q2 Has your problem been Resolved? | Q2A |
| 3 | Q3 Has your problem been Resolved? | Q3A |
| 4 | Q4 Has your problem been Resolved? | Q4A |
| 5 | Q5 Has your problem been Resolved? | Q5A |
| 6 | Q6 Has your problem been Resolved? | Q6A |
| 7 | Q7 Has your problem been Resolved? | Q7A |
| 8 | Q8 Has your problem been Resolved? | Q8A |
| 9 | Q9 Has your problem been Resolved? | Q9A |
| 10 | Q10 Has your problem been Resolved? | Q10A |
| 11 | Q11 Has your problem been Resolved? | Q11A |
| 12 | Q12 Has your problem been Resolved? | Q12A |
需要转化为
| Q1_Question | Q1_ANSWER | Q2_Question | Q2_ANSWER | … | Q12_Question | Q12_ANSWER |
| Q1 Has your problem been Resolved? | Q1A | Q2 Has your problem been Resolved? | Q2A | … | Q12 Has your problem been Resolved? | Q12A |
用PIVOT函数 怎么实现呢?这种双文本呃转换。
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