public AddHouse(HID, Float:EntX, Float:EntY, Float:EntZ, Float:IntX, Float:IntY, Float:IntZ, IntID, VW, HPrice)
{
    new
        str[1012]
    ;
    if(HID >= MAX_HOUSES) return 0;
    format(str, sizeof(str), "SELECT * FROM `houseinfo` WHERE `HouseID` = %d", HID);
    mysql_query(str);
    mysql_store_result();
    if(mysql_num_rows() > 0) return 0;
    mysql_free_result();

    format(str, sizeof(str), "INSERT INTO `houseinfo` (HouseID, Owner, EnterX, EnterY, EnterZ, InteriorX, InteriorY, InteriorZ, InteriorID, VWorld, Price) VALUES (%d, The State, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %d, %d, %d)", HID, EntX, EntY, EntZ, IntX, IntY, IntZ, IntID, VW, HPrice);
    mysql_query(str);
    return 1;
}

[Sun Aug 15 13:04:24 2010] Function: mysql_query executed: "INSERT INTO `houseinfo` (HouseID, Owner, EnterX, EnterY, EnterZ, InteriorX, InteriorY, InteriorZ, InteriorID, VWorld, Price) VALUES (1, The State, 1231.30, 2323.00, 2322.19, 2322.00, 564.00, 321.20, 1, 1, 50000)" with result: "1".
[Sun Aug 15 13:04:24 2010] Error (0): Failed to exeute query. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'State, 1231.30, 2323.00, 2322.19, 2322.00, 564.00, 321.20, 1, 1, 50000)' at line 1.