[sqlite] any data access and retrieval engine?

[Sarah]

Hi,all

First of all, I want to thank all the guys on this mailing list for their warm 
help.

After 1 more month of work, I finally make SQLite work on my embedded 
environment. SQLite is really great! Many thanks,Drh.

But, due to the extremely heavy hardware constraints, I have to give up SQLite 
finally. 

So I'm trying to find a much simpler data access and retrieval engine. 

Could anyone give me some help on this issue?(some guidance on how to make a 
DARE or is there any open-source one available?) 

thanks in advance.