How we use merge command in pro*C

Question

merge command not support the pro*C pl/sql block how we use in pro*C (without creating any pl block on database )

Answer 1

hello shalab,
u can use dynamic sql method one.for execution merge query.
syntax is
EXEC SQL EXECUTE IMMEDIATE :stmt
u have to copy your query into one string.
like this
strcpy(stmt,"merge into emp_new a ");
strcat(stmt," using emp b ");
strcat(stmt,"on ( a.empno = b.empno) ");
strcat(stmt," when matched then ");
strcat(stmt," update set sal= sal*10 ");
strcat(stmt," when not matched then ");
strcat(stmt," insert (a.empno, a.ename) values ");
strcat(stmt," (b.empno, b.ename); ");
then execute like this.
EXEC SQL EXECUTE IMMEDIATE :stmt