Union all - order of results
Let's assume that we have query "set1 union all set2 union all set 3". Is there any guarantee in Oracle that we will get result records in sequnece: set1, set2 , set3 ?
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Let's assume that we have query "set1 union all set2 union all set 3". Is there any guarantee in Oracle that we will get result records in sequnece: set1, set2 , set3 ?