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2answers
42 views

Which query performs better when searching a row where a column has maximum?

Consider a simple table for example purposes: person(name varchar, age int) I have a task to retrieve the oldest person. Which query is better in general for such problems? Query 1: criteria with ...
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1answer
48 views

Does LIMIT 1 still have effect on a unique column

I know that adding LIMIT 1 when searching for only one record makes a lot of difference when it comes to performance. But does it still have any effect when we search a column with a unique ...
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0answers
30 views

LibreOffice Base randomly changes character limit in forms

I have to work with LibreOffice Base, and when I created a form to fill the table. It worked perfectly, but when I wanted to use agains it randomly changed the maximum type-able character limit. I ...