A database that maintains a set of separate, related files (tables), but ... Routine queries to a relational database often require data from more than one file. For example, to obtain the names ...
To scale a relational database, you either have to ... database functionality and performance. For example, you might have to modify multiple tables, indexes, views, or triggers when changing ...
A question asked about data contained in two or more tables in a relational database. The relational query must specify the tables required and what the condition is that links them; for example ...
Here's an example: - Orders table: order_id (primary key ... To enforce referential integrity in a relational database, you must define foreign keys in the child table that reference the primary ...
Rather than storing information in one table, relational databases store data across several tables. In a relational database ... In these examples the words 'is used on' appear on the line ...
In Grokking Relational Database Design you’ll learn the basics of relational database design including how to name fields and tables, which data to store ... of programming—the book’s practical ...
Read more about about defining Mondrian OLAP schema. Here is example how to define OLAP schema and its mapping to relational database tables and columns using mondrian-olap: Mondrian OLAP provides MDX ...