Discuss the different ways for looping over a query result in PHP. #11.9 – What are placeholders? How are they used in PHP database programming? CH 12: OBJECT AND OBJECT-RELATIONAL DATABASE #12.8 – How do regular inheritance, multiple inheritance, and selective inheritance differ? #12.23 – What are the main differences between designing a relational database and an object database? CH13: XML EXTENSIBLE MARKUP LANGUAGE #13.4 – What is the difference between data-centric and document-centric XML documents?
