﻿CREATE TABLE IF NOT EXISTS cards (
                                            id              integer primary key,   /* 0 */
                                            nid             integer not null,      /* 1 */
                                            did             integer not null,      /* 2 */
                                            ord             integer not null,      /* 3 */
                                            mod             integer not null,      /* 4 */
                                            usn             integer not null,      /* 5 */
                                            type            integer not null,      /* 6 */
                                            queue           integer not null,      /* 7 */
                                            due             integer not null,      /* 8 */
                                            ivl             integer not null,      /* 9 */
                                            factor          integer not null,      /* 10 */
                                            reps            integer not null,      /* 11 */
                                            lapses          integer not null,      /* 12 */
                                            left            integer not null,      /* 13 */
                                            odue            integer not null,      /* 14 */
                                            odid            integer not null,      /* 15 */
                                            flags           integer not null,      /* 16 */
                                            data            text not null          /* 17 */
                                        );