Flatten a nested dictionary?? ( this was the hardest question in coder pad questions )

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Flatten a nested dictionary?? ( this was the hardest question in coder pad questions  )

Sigiloso · Accepted Answer

I recently had an on-site and it was very similar to what was mentioned in this example. The dw scheme and sql questions involved building a dw for an app. Design the dw and then answer business questions. The app example given to me was for air bnbs

Sigiloso · Answer

Can u elaborate more on the DW, Schema and SQL questions? On-site coming up in few days.
Thanks in advance.

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