2. Specify the expression name for the to-be-defined query. 3. Optional: Specify column names separated by commas. 4. After assigning the name of the expression, enter the AS command. The expressions, ...
https://leetcode.com/problems/sum-of-two-integers/ (highly recommend) https://leetcode.com/problems/bitwise-and-of-numbers-range/submissions/ (medium) https ...