Vincent Malgrat questions

Vincent Malgrat answers

• Select directly into hierarchical user type
• Oracle: FK on union of two tables?
• PHP format of date from Oracle database
• Using Oracle PL/SQL table of record with multiple %rowtype fields
• How can I store NULLs in NOT NULL field?
• Consequences of ARCHIVELOG
• I/O Resource Plan
• Special characters in email from Oracle pl/sql
• Can't Oracle infer these queries are identical - very different execution plan generated
• where rownum=1 query taking time in Oracle