yuvrajsab / CD-Project

A simple SQL update statement parser.

Simple SQL Update Statement Parser

Compiler Designing project on SQL update statement parsing based on Lex and Yacc.

This parser simply checks the validity of the Update statement of SQL language.

example:

Enter a SQL update query:
SQL: update table
  -> set name = "val"  
  -> where name IS NULL;
Query is Valid!

Screenshot

Development

This project is built using Flex, Yacc and GNUMake. Before you can start development you need to take care of a few prerequisites.

Installing Prerequisites

Using apt package manager (Debian/Ubuntu)

sudo apt install flex yacc 
sudo apt install make #(optional)

Note: You can get GnuMake for Windows OS from http://gnuwin32.sourceforge.net/packages/make.htm

Clone Project

You can simply clone the project using git as:

git clone https://github.com/yuvrajsab/CD-Project.git

or you can simply download ZIP and extract it.

Build

You can build project by just running a command using GNUMake.

make build

Or Manually:

flex update.l
yacc update.y
gcc lex.yy.c y.tab.c

Run

You can build & run project by simply running just one command using GNUMake.

make

Or Manually (after Build):

./a.out #(for linux/macos)
./a.exe #(for windows)

Test

We have some tests in tests.txt file to check the parser which strings it is accepting. You can also add your own string in tests.txt file.

Run test using GnuMake:

make test

Or Manually (after Build):

./a.out TEST #(for linux/macos)
./a.exe TEST #(for windows)