#ifndef __DB_H__#define __DB_H__#define DB_OK                           0#define DB_ERROR                        9999#define DB_NOTFOUND                     9998 #define DB_KEYDUPLICATE                 1062#define DBS_SELECT                      0#define DBS_LOCK                        1#define DBS_UPDATE                      2#define DBS_INSERT                      3#define DBS_DELETE                      4#define DBS_INIT                        5#define DBS_OPEN                        10#define DBS_FETCH                       11#define DBS_CLOSE                       12typedef struct{        double                  no;        char                    upd_ts[15];        char                    name[21];        char                    duty[2];        int                     age;        double                  salary;} emp_t;typedef struct{        double                  no;        char *                  resume;} resume_t;#endif