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 ...

A method for describing a database query originally developed by IBM for mainframes. A replica of an empty record is displayed and the search conditions are typed in under their respective columns ...

GraphQL queries. So, we’ve already said that GraphQL uses a schema, or a data definition, to describe how the data to be retrieved is organized in the query and the response.Anyone who has ...

Graph database query languages are growing, ... All databases need a way to talk with their clients, and the query languages they speak define what the database can do.