#include <stdio.h>
#include <stdlib.h>
#include <sqlite3.h>

static int callback(void *data, int argc, char **argv, char **azColName) {
  int i;
  fprintf(stderr, "%s: ", (const char *)data);

  for (i = 0; i < argc; i++) {
    printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
  }

  printf("\n");
  return 0;
}

int main(int argc, char *argv[]) {
  sqlite3 *db;
  char *zErrMsg = 0;
  int rc;
  char *sql;
  const char *data = "Callback function called";

  /* Open database */
  rc = sqlite3_open("test.db", &db);

  if (rc) {
    fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
    return (0);
  } else {
    fprintf(stderr, "Opened database successfully\n");
  }

  /* Create merged SQL statement */
  sql = "UPDATE COMPANY set SALARY = 25000.00 where ID=1; "
        "SELECT * from COMPANY";

  /* Execute SQL statement */
  rc = sqlite3_exec(db, sql, callback, (void *)data, &zErrMsg);

  if (rc != SQLITE_OK) {
    fprintf(stderr, "SQL error: %s\n", zErrMsg);
    sqlite3_free(zErrMsg);
  } else {
    fprintf(stdout, "Operation done successfully\n");
  }

  sqlite3_close(db);

  return 0;
}