Is it possible to define a pointer to a row in the database so I could retrieve that row, the next row, and the previous row without querying the database?
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Is it possible to define a pointer to a row in the database so I could retrieve that row, the next row, and the previous row without querying the database?
No. You need to query all three rows in one query and put them into a list. You can then index the list without doing another query.