char another_dt[21];
EXEC SQL VAR another_dt IS STRING(21);

<b>
EXEC SQL BEGIN DECLARE SECTION;
varchar dt[21];
EXEC SQL END   DECLARE SECTION;
</b>

strcpy(user,"XXXXX@SIDMY.WORLD");
strcpy(passwd,"XXXXX");

EXEC SQL WHENEVER SQLERROR DO print_error_msg();
EXEC SQL WHENEVER SQLWARNING DO print_warning_msg();

EXEC SQL CONNECT :user IDENTIFIED BY :passwd;

memset(dt.arr,'',21);
EXEC SQL SELECT TO_CHAR(sysdate,'DD/MON/YYYY HH24:MI:SS') into :dt from dual;
EXEC SQL SELECT TO_CHAR(sysdate,'DD/MON/YYYY HH24:MI:SS') into :another_dt from dual;
dt.len = strlen(dt.arr);
printf("Date is :%sn",dt.arr);
printf("Another Date is :%sn",another_dt);

/* varchar dt[21]; */ 
struct { unsigned short len; char arr[21]; } dt;