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FLEX and BISON SQL query engine

FLEX and BISON SQL query engine that takes as input a database and a query, both .txt files. This was a project for the Language Processing course in my senior year of my undergrad in computer science at UDC (Spain). The file "README.txt" contains more comprehensive instructions (In Spanish)

Query specification

SELECT *|field1[,field2,…] FROM Table_Name
WHERE operand operator operand;

where

operand: campo|valor
operator: <|>|=

Table format

CREATE TABLE Empleado (
idEmpleado BIGINT NOT NULL PRIMARY KEY,
nombre VARCHAR(100) NOT NULL,
apellidos VARCHAR(200) NOT NULL,
puesto VARCHAR(100) NOT NULL, anho CHAR(4) NOT NULL
);

Instructions

Download the code and to compile and execute the software, run

make

The file "consulta.txt" and "Empleados.txt" contain a working example, ready to use. Feel free to change it with your own.

Tools and requirements

The project was developed with

  • C
  • FLEX
  • BISON

Contact

Contact Daniel Ruiz Perez for requests, bug reports and good jokes.

License

The software in this repository is available under the GNU General Public License, version 3. See the LICENSE file for more information.