Yurttas/PL/DBL/oracle/F/03/Bank/Client-ins.pc

 1/*
 2REM
 3REM
 4REM client-ins.pc
 5REM
 6REM
 7*/
 8
 9#include <stdio.h>
10#include <sqlca.h>
11
12#define UNAME_LEN 32
13#define PWD_LEN   16
14
15VARCHAR username[UNAME_LEN]; /* VARCHAR is an Oracle-supplied struct */
16VARCHAR password[PWD_LEN];   /* varchar can be in lower case also. */
17
18char u_name[UNAME_LEN];
19char pwd[PWD_LEN];
20
21void connect_to_oracle();
22void sql_error();
23
24void main(int argc, char* argv[]) {
25  connect_to_oracle();
26
27  EXEC SQL
28    WHENEVER SQLERROR DO sql_error("Error in INSERT_table: Client");
29
30  EXEC SQL
31    INSERT INTO Client
32      VALUES ('Turner', 'Johnson');
33
34  EXEC SQL
35    INSERT INTO Client
36      VALUES ('Hayes', 'Jones');
37
38  EXEC SQL
39    INSERT INTO Client
40      VALUES ('Johnson', 'Johnson');
41
42  EXEC SQL COMMIT WORK RELEASE;
43
44  exit(0);
45}
46
47
48void sql_error(char* msg) {
49  char err_msg[128];
50  int buflen, msglen;
51
52  EXEC SQL WHENEVER SQLERROR CONTINUE;
53
54  printf("%s \n", msg);
55  buflen = sizeof(err_msg);
56  sqlglm(err_msg, &buflen, &msglen);
57  printf("%.*s \n", msglen, err_msg);
58  exit(1);
59}
60
61
62void connect_to_oracle() {
63  /* get your username/passwd from "user_pwd.txt" file */
64
65  FILE *in_file;
66  in_file = fopen("user_pwd.txt", "r");
67  fscanf(in_file, "%s", u_name);
68  fscanf(in_file, "%s", pwd);
69
70  strncpy((char *) username.arr, u_name, UNAME_LEN);
71  username.len = strlen((char *) username.arr);
72
73  strncpy((char *) password.arr, pwd, PWD_LEN);
74  password.len = strlen((char *) password.arr);
75
76  EXEC SQL WHENEVER SQLERROR DO sql_error ("ORACLE error-- ");
77  EXEC SQL CONNECT :username IDENTIFIED BY :password;
78
79  printf("connected to oracle - \n");
80}