What is a technical blog?

A technical blog is a weblog of technical tips, tricks, hints, pointers as we come across in our technical pursuits. This may contain occassional references to Iraq War, but always the main context of the page is technical in nature. This is not your
traditional what have I done today, whom have I met and what did I say to so and so.

> Sometime tables in a database have been locked.
> What do you think?

Are you closing the database after you are done in a finally block always? If not, do it.

>I wonder if there is any error in sql statement, the error will be thrown in catch{…} right.
Yes.

>Will the application get confused where the error should be thrown?
Software don't think so they don't get confused, we humans do :)