Yurttas/PL/DBL/oracle/F/03/Company-B/Company-def.pc

 1/*
 2REM
 3REM
 4REM Company-def.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 CREATE_table: Company");
29
30  EXEC SQL
31    CREATE TABLE Company (companyname VARCHAR2(24) NOT NULL,
32                          city VARCHAR2(16),
33             PRIMARY KEY (companyname));
34
35  EXEC SQL COMMIT WORK RELEASE;
36
37  exit(0);
38}
39
40
41void sql_error(char* msg) {
42  char err_msg[128];
43  int buflen, msglen;
44
45  EXEC SQL WHENEVER SQLERROR CONTINUE;
46
47  printf("%s \n", msg);
48  buflen = sizeof(err_msg);
49  sqlglm(err_msg, &buflen, &msglen);
50  printf("%.*s \n", msglen, err_msg);
51  exit(1);
52}
53
54
55void connect_to_oracle() {
56  /* get your username/passwd from "user_pwd.txt" file */
57
58  FILE *in_file;
59  in_file = fopen("user_pwd.txt", "r");
60  fscanf(in_file, "%s", u_name);
61  fscanf(in_file, "%s", pwd);
62
63  strncpy((char *) username.arr, u_name, UNAME_LEN);
64  username.len = strlen((char *) username.arr);
65
66  strncpy((char *) password.arr, pwd, PWD_LEN);
67  password.len = strlen((char *) password.arr);
68
69  EXEC SQL WHENEVER SQLERROR DO sql_error ("ORACLE error-- ");
70  EXEC SQL CONNECT :username IDENTIFIED BY :password;
71
72  printf("connected to oracle - \n");
73}