codegeneration / SQLparser
Date: 25 Sep 2002 02:37:50 -0700
Message-ID: <25579391.0209250137.3b362856_at_posting.google.com>
Hello
My name is Tony and I am doing my master thesis on the subject databases. Now Iam in the stage to únderstand code generation and precompiled queries.
This messege can be split in to parts first a need some help(litterature or links) that treats and explain precompiled queries.
Second I need help with a question that concern code generation. If we
consider the basics in relational algebra we talk about two kinds of
operators
Relational operators
-SELECT
-PROJECT
-JOIN
-DIVIDE
Set operators
-PRODUCT
-UNION
-INTERSECT
-DIFFERENCE
But a set of relational algebra operations is called a complete
set, if and only if:
Any relational algebra operator in the set cannot be derived in
terms of a sequence of the others in the set. These operators are
-selection
-projection
-union
-difference
-cartesian product
this gives as I understand five fundamental operations.
My question is where can i find information on how each of these
translates to C-code. The information i can find contain information
on query optimizing but nothing about code generation or even a clue
to where to find this codegeneration.
I have search for both an embedded SQL and ordinary SQl parser without
any luck so if some know anything on this subject dont hesitate
Thanks Tony Received on Wed Sep 25 2002 - 11:37:50 CEST