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

// This is the callback function to display the select data in the table 
static int callback(void *NotUsed, int argc, char **argv, char **azColName)
{
	int i;
	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; // sqlite3 db struct
	char *zErrMsg = 0;
	int rc;

	// Open the test.db file
	rc = sqlite3_open("ex2.db", &db);

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

	const char *pSQL[6];

	// Create a new myTable in database
	pSQL[0] = "create table myTable (FirstName varchar(30), LastName varchar(30), Age smallint)";

	// Insert first data item into myTable
	pSQL[1] = "insert into myTable (FirstName, LastName, Age) values ('Washington', 'George', 22)";
	
	// Insert second data item into myTable
	pSQL[2] = "insert into myTable (FirstName, LastName, Age) values ('Lincoln', 'Abraham', 33)";

	// Select all data in myTable
	pSQL[3] = "select * from myTable";
	
	// Remove all data in myTable
	pSQL[4] = "delete from myTable"; 

	// Drop the table from database
	pSQL[5] = "drop table myTable";

	// execute all the sql statement
	for(int i = 0; i < 6; i++)
	{
		rc = sqlite3_exec(db, pSQL[i], callback, 0, &zErrMsg);
		if( rc!=SQLITE_OK ){
			fprintf(stderr, "SQL error: %s\n", zErrMsg);
			sqlite3_free(zErrMsg);
			break;
		}
	}

	sqlite3_close(db);

	return 0;
}