Michi questions

• Create list of dates if values exist before and after a certain time period
• Add a new column and replace NULL values
• XLOOKUP with flexible column for return_array and not unique values in lookup_array
• Iterate through data and calculate the sum of the last three days of each month
• Using alias from COALESCE from SELECT in WHERE clause
• Two classes next to each other in CSS
• Merge two tables in one SQL query and make the date values unique
• text-align center in <li> element

Michi answers