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 ...

Use of relational databases where primary and foreign keys ... Entities, attributes and relationships should be clearly defined. Implementation Structured Query Language is used to allow database ...

Java Database Connectivity (JDBC) is an application program interface (API) packaged with the Java SE edition that makes it possible to standardize and simplify the process of connecting Java ...