Isn't the SQL string just a simple ASCII text string?

So you just have to build the string, with the 8051 inserting its own ID? No real intelligence there.
Similarly, the 8051 just needs to parse the resulting string returned to it?

Just like sending an AT command to a modem, and reading the response?

You should confine all the "clever" stuff to the server (PC? UNIX? whatever!), which presumably can handle all the bloatware?