chapter 15 Database and Internet
Dynamic webpage Dynamic webpages are at the heart of current websites. In this database query scenario, the web server generates […]
Dynamic webpage Dynamic webpages are at the heart of current websites. In this database query scenario, the web server generates […]
Join To find the customer who bought ‘Claw hammer’, suppose you SELECT FROM WHERE DISTINCT CUS_CODE, CUS_LNAME, CUS_FNAME CUSTOMER JOIN […]
GROUP BY A SQL clause used to create frequency distributions when combined with any of the aggregate functions in […]
Fourth normal form and Multi-valued dependencies Example: Pizza Delivery Permutations Restaurant Pizza Variety Delivery Area A1 […]
Entity Relationship Modeling The ERD represents the conceptual database as viewed by the end user. ERDs depict the database’s main […]
Terms Because a relation is a mathematical construct, end users find it much easier to think of a relation […]
Database are specialized structures that allow computer-based systems to store, manage, and retrieve data very quickly. data : Raw facts, or facts that have […]
Connect to Mysql from python code: Basic about connection to Mysql by Python: http://frankfu.click/web-develop/python/chapter-8-2-work-database.html Additional connection parameters. To specify the […]