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id | one | two
1 | aa |
2 | da |
3 | sds |
4 | as |
5 | dfss |
6 | r |
7 | fd |
How can i make copy all data from “one” to “two”, where length one == 2 with SQL? In this example should be:
id | one | two
1 | aa | aa
2 | da | da
3 | sds |
4 | as | as
5 | dfss |
6 | r |
7 | fd | fd
Something like this should work, I think: