DevOps, CI/CD and Automation

Hi,

i can compile a simple hello world script but what i want to achieve is to have embedded sql in the script as well but as soon as i do that i get the following errors for which i cant find a solution on the web:

error: `EXEC' does not name a type
error: `VARCHAR' does not name a type
error: `username' was not declared in this scope
error: expected `;' before "SQL"

Any form of help will be appreciated.

Regards,

#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <string>
#include <unistd.h>   
#include <fstream>

using namespace std;
#define     UNAME_LEN 10
#define     PWD_LEN   13

                  
EXEC SQL INCLUDE sqlca; 
EXEC SQL INCLUDE sqlda;
EXEC SQL INCLUDE sqlcpr;


EXEC SQL BEGIN DECLARE SECTION;
  VARCHAR username[UNAME_LEN];
  VARCHAR password[PWD_LEN];
  VARCHAR dbname[4];
EXEC SQL END DECLARE SECTION;

int main() {
char hello[15];
  username.len = (unsigned short)strlen(strcpy((char *)username.arr, "xx"));
  password.len = (unsigned short)strlen(strcpy((char *)password.arr, "xx"));
  dbname.len = (unsigned short)strlen(strcpy((char *)dbname.arr, "xx"));

EXEC SQL CONNECT :username IDENTIFIED BY :password USING :dbname;

EXEC SQL SELECT 'Hello World' INTO :hello FROM DUAL;

printf("%s\n", hello);

EXEC SQL COMMIT RELEASE;

return 0;
}