Multiple query && BLOB type

[Snoops]

Hello,

I am developing an application with an embedded sqlite3 database and I need to make multiple requests one after the other. Is there another way rather than increasing calls to "executeQuery:" method?

And other question. How do I get a line of type BLOB ?? I saw that we could retrieve int, long, double, bool, string and date but nothing for blob and I need to retrieve an image in the database.

Thanks for your answers.