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Loop through Self JOIN on table until the operand column is NULL completely
For the problem I have a single table which store a Member's ID and His Referee's ID. This is something like a Multi-Level-Marketing plan where you join a company for some tasks and then someone join ...
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Combining a tree structured Group model with its HABTM User model in one VIEW
I have a tree structured model Group which has the columns id, parent_id, name, lft and rght. I also have a model User which has the columns id, name and password. Group and User have a ...
