SQL parser in C

Question

I want to parse and store the columns and values of a SQL DML (INSERT, UPDATE, DELETE) statement in C. Need the URL of the open source code or a library with which I can lin

Answer 1

ANTLR can target C, among other languages, and its catalog of premade grammars has a bunch of SQL dialects - notably MySQL and Oracle.

Answer 2

Have you looked at SQLite ? It certainly does have the code to parse SQL, so maybe you could avoid reimplementing it..

Answer 3

You can have a look at the source code for SQLite. It uses a parser called Lemon.

Links:

SQLite architecture

Lemon parser

You can also look at the source code for postgresql-plpython3. Looks like it has a pure C based SQL parser.

Link:

postgresql-plpython3 @ github

Answer 4

I would suggest to start from the real parser of a real DBMS. There are several in free software. For instance, the parser of PostgreSQL is in the directory src/backend/parser of the distribution and is written in C and Yacc.

Answer 5

Not sure is there any mature C sql parser can do that easily.

Here is a Java version SQL library can do what you need exactly, it can be used to Retrieve/Refactor table & column name from a complex SQL query easily.

Answer 6

Have you considered writing your own using lex and yacc? (the hacker - hardcore approach)

Not trivial .. but this site might help you get started