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rem -----------------------------------------------------------------------
rem Filename:   dynasql.sql
rem Purpose:    Example PL/SQL code to demonstrate Dynamic SQL
rem Date:       25-Feb-2003
rem Author:     Frank Naude, Oracle FAQ
rem -----------------------------------------------------------------------

CREATE OR REPLACE PROCEDURE CREATE_TABLE1 AS
  sql_stmt varchar2(4000);
BEGIN
  EXECUTE IMMEDIATE 'CREATE TABLE x (a NUMBER)';
END;
/
show errors

CREATE OR REPLACE PROCEDURE CREATE_TABLE2 AS
  cur integer;
  rc  integer;
BEGIN
  cur := DBMS_SQL.OPEN_CURSOR;
  DBMS_SQL.PARSE(cur, 'CREATE TABLE X (Y DATE)', DBMS_SQL.NATIVE);
  rc := DBMS_SQL.EXECUTE(cur);
  DBMS_SQL.CLOSE_CURSOR(cur);
END;
/
show errors

SET SERVEROUTPUT ON

CREATE OR REPLACE PROCEDURE DEPARTMENTS(NO IN DEPT.DEPTNO%TYPE) AS
  v_cursor integer;
  v_dname  char(20);
  v_rows   integer;
BEGIN
  v_cursor := DBMS_SQL.OPEN_CURSOR;
  DBMS_SQL.PARSE(v_cursor, 'select dname from dept where deptno > :x', DBMS_SQL.V7);
  DBMS_SQL.BIND_VARIABLE(v_cursor, ':x', no);
  DBMS_SQL.DEFINE_COLUMN_CHAR(v_cursor, 1, v_dname, 20);
  v_rows := DBMS_SQL.EXECUTE(v_cursor);
  loop
    if DBMS_SQL.FETCH_ROWS(v_cursor) = 0 then
       exit;
    end if;
    DBMS_SQL.COLUMN_VALUE_CHAR(v_cursor, 1, v_dname);
    DBMS_OUTPUT.PUT_LINE('Deptartment name: '||v_dname);
  end loop;
  DBMS_SQL.CLOSE_CURSOR(v_cursor);
EXCEPTION
  when others then
       DBMS_SQL.CLOSE_CURSOR(v_cursor);
       raise_application_error(-20000, 'Unknown Exception Raised: '||sqlcode||' '||sqlerrm);
END;
/
show errors

Example PL/SQL code to demonstrate Dynamic SQL