Per the title, to what does the update tag refer? It has no wiki entry, but has been used to refer to all of the following:
- Updating a piece of software?
- The SQL command?
- "Updating data" (not via SQL)?
Problem is, they're all very different things.
Personally I think it should only be the first - software updates. There is no tag for "delete" or "insert", that's what SQL is for, and "updating data" covers every other question in one way or another.
Assuming there's a consensus, it may be worth clarifying in the wiki entry and doing some retagging.