Every database platform has a way to select from nothing. Sometimes we use it to generate data manually, sometimes we use it to get values of various system functions, but it is important to be able to do.
Dummy Table
Generally a dummy table is a dummy table that has exactly one row, but no data this makes it so we can select static values or understand the values of settings or functions, or even understand how a particular function works when we feed it just static data.… Read the rest
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