SQL Vs SPL: Efficient Grouping And Interval Search In Database Queries
SPL simplifies SQL complexity for grouped subsets & positional references. Use `GROUP BY` without aggregation, then search within a 3-record interval (`[-1:1]`) for specified `Cardboard_Number`.
The ProductionLine_Number in a certain table of the Mariadb database is a grouping field, and there are duplicate values in the Cardboard_Number field within the group. Group by ProductionLine_Number, sort by date_Time within the group, and search for all records in each group with Cardboard_Number equal to the specified string. Retrieve the records before and after the specified offset and remove duplicate records. For example, Cardboard_Number="WDL-005943998-1", with an offset of 1, the result is as follows: If Cardboard_Number= "spL1ml82N4o" with an offset of 2, then the IDs of the result...