July 2005
Intermediate to advanced
1032 pages
27h 10m
English
Content preview from PostgreSQL, Second Edition
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General Structure of Client Applications
This is a good time to discuss, in general terms, how a client application interacts with a PostgreSQL database. All the client APIs have a common structure, but the details vary greatly from language to language.
Figure 5.1 illustrates the basic flow of a client's interaction with a server.
Figure 5.1. Client/server interaction.
An application begins interacting with a PostgreSQL database by establishing a connection.
Because PostgreSQL is a client/server database, some sort of connection must exist between a client application and a database server. In the case of PostgreSQL, client/server communication ...
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