I'm reading a book about SQL. In that book there's the term Ad Hoc Query, which I don't understand. What exactly is an ad hoc query?

I’m trying to understand the plan cache content of a sql server. so my questions are: 1. What is the difference between ad hoc and prepared plans? 2.What should I know about it when trying to opti...

Ad hoc queries vs stored procedures vs Dynamic SQL. Can anyone say pros and cons?

How would I execute a query equivalent to "select top 10" in couch db? For example I have a "schema" like so: title body modified and I want to select the last 10 modified documents. As an add...