Top "Full-table-scan" questions

Can I do a MongoDB "starts with" query on an indexed subdocument field?

I'm trying to find documents where a field starts with a value. Table scans are disabled using notablescan. This works: …

regex mongodb search indexing full-table-scan
How to make full table scans faster in Oracle database?

This is a simple question. Suppose I have a massive table (5 million rows), and I have no option but to …

database oracle sqlperformance full-table-scan