Using Native Dynamic SQL. Native dynamic SQL processes most dynamic SQL statements by means of the EXECUTE IMMEDIATE statement.. If the dynamic SQL statement is a SELECT statement that returns multiple rows, native dynamic SQL gives you the following choices. Use the EXECUTE IMMEDIATE statement with the BULK COLLECT INTO clause.. Use the OPEN-FOR, FETCH, and . String concatenation opens doors to possible SQL injection exploits: BEGIN EXECUTE IMMEDIATE v_query INTO v_accessed_at USING p_uname; RETURN v_accessed_at; END; / SELECT user_access('janihur') AS "JANIHUR LAST SEEN" FROM DUAL; JANIHUR LAST SEEN SELECT user_access('whocares'' or superuser = 1 or username. SQL injection is possible only when a PL/SQL subprogram executes a SQL statement whose text it has created at run time using what, here, we can loosely call unchecked user input3. Clearly, then, the best way to avoid SQL injection is to execute only SQL statements whose text derives entirely.
PL/SQL tutorial 81: PL/SQL Execute Immediate with INTO clause in Oracle Database, time: 8:51Tags:Star dunk game cih apk,Lotro keeps ing loading screens,Mercy good music no tags t-shirts,Karte und gebiet pdf