How to Connect to a MySQL Database and Execute Queries Using C ?

How to Connect to a MySQL Database using C

To establish a connection between your website and a MySQL database, and execute select queries on table rows, you'll need to utilize the appropriate C libraries. Here's how you can achieve this:

Import the following libraries:

<code class="cpp">#include <stdlib.h>
#include <iostream>
#include "mysql_connection.h"
#include <cppconn/driver.h>
#include <cppconn/exception.h>
#include <cppconn/resultset.h>
#include <cppconn/statement.h>
using namespace std;</code>

Set up your C program:

<code class="cpp">int main(void)
{
  // Initialize connection details
  sql::Driver *driver;
  sql::Connection *con;
  sql::Statement *stmt;
  sql::ResultSet *res;

  try {
    // Establish connection to MySQL
    driver = get_driver_instance();
    con = driver->connect("tcp://127.0.0.1:3306", "root", "root");
    con->setSchema("test"); // Replace "test" with your database name

    // Create statement object
    stmt = con->createStatement();

    // Execute select query
    res = stmt->executeQuery("SELECT 'Hello World!' AS _message");

    // Display query results
    while (res->next()) {
      cout << "\t... MySQL replies: " << res->getString("_message") << endl;
      cout << "\t... MySQL says it again: " << res->getString(1) << endl;
    }

    // Clean up resources
    delete res;
    delete stmt;
    delete con;
  }
  catch (sql::SQLException &amp;e) {
    // Handle database exception
    cout << "# ERR: SQLException in " << __FILE__ << endl;
    cout << "# ERR: " << e.what() << endl;
  }

  return EXIT_SUCCESS;
}</code>

By utilizing the libraries and following the steps outlined above, you can successfully connect to a MySQL database using C and execute select queries on table rows.

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