How to create and execute PL/SQL program or Procedure from Java (JDBC)

Question

hi all,
user will enter the Pl/Sql program from User-Interface. that program has to be create in DB and execute that.
due to some confusions, how to execute this from Java, i (user) entered the same logic through a Procedure.
my Java code is
Statement st = con.createStatement();
Statement.execute(procedure_query); // procedure name is myPro
CallableStatement cs = con.prepareCall("{call myPro}");
(as given in SUN docs - http://java.sun.com/docs/books/tutorial/jdbc/basics/sql.html)
but its not creating the procedure.
and i tried to run a procedure (which is already created) with CallableStatement, and this is also not working.
how to get this.
thanks and regards
pavan

Answer 1

Hi,
SInce the PL/SQL block is keyed in dynamically, you probably want to use the anonymous PL/SQL syntax for invoking it:
// begin ? := func (?, ?); end; -- a result is returned to a variable
CallableStatement cstmt3 =
conn.prepareCall(“begin ? := func3(?, ?); end;”);
// begin proc(?, ?); end; -- Does not return a result
CallableStatement cstmt4 =
Conn.prepareCall(“begin proc4(?, ?); end;”);
SQLJ covered in chapter 10, 11, and 12 of my book furnish a more versatile dynamic SQl or PL/SQL mechanisms.
Kuassi
- blog http://db360.blogspot.com/
- book http://db360.blogspot.com/2006/08/oracle-database-programming-using-java_01.html