Question: When an SQL SELECT command has a subquery within it the subquery is executed first the subquery is executed last there is just one SELECT

When an SQL SELECT command has a subquery within it
the subquery is executed first
the subquery is executed last
there is just one SELECT clause in the entire command, including the subquery
all predicates in the subquery's WHERE clause are passed back to the main query
all predicates in the main query's WHERE clause are passed down to the subquery
When an SQL SELECT command has a subquery within it the

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