I remember studying that Proof of Stake is often associated with blockchains that manage wealth and assets, but I could be mixing it up with something else.
Okay, the key things I see are the NLS_DATE format and the need to use the correct date comparison in the HAVING clause. I think options A and D might work, but I'll double-check the syntax.
Hmm, I'm a bit unsure about this one. I know we've covered priority calculations in class, but I can't quite remember all the details. I'll need to think it through carefully.
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