SQL Puzzle: SQL Advance Query – Find the Column name which has all NULL

Check the below input data and expected output to find the name of the column which has all NULL records. Input Data: [crayon-6a24158fb9f2f431645535/] Expected Output: [crayon-6a24158fb9f32060651008/] Create a sample table with data: [crayon-6a24158fb9f33096413213/] Solution: [crayon-6a24158fb9f34038268829/] Please try the different solution for this puzzle and share it via comment... Reference taken from here: Oct 8, 2017Anvesh […]

October 8, 2017 SQL Puzzle