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