Domain relational calculus (DRC) is a formal query language that is 'non-procedural' and 'declarative'. Being a form of relational calculus the domain relation calculus also specifies what information has to be retrieved, not how that information has to be retrieved. Domain relational calculus is much similar to the tuple relational calculus the only difference is that the … [Read more...] about Domain Relational Calculus
Tuple Relational Calculus
Tuple relational calculus is a formal query language that we use to retrieve information from the relational database. It is a non-procedural query language, that only states what information has to be retrieved but, it does not state how the particular information has to be retrieved. We also refer to the tuple relational calculus as a declarative query language as it … [Read more...] about Tuple Relational Calculus
Database System Environment
The database system environment is comprised of the components that are meant for defining and managing the data that we collect, store, manage and use in the database environment. In the section ahead, we will discuss all the components that constitute the database environment and along with this, we will also discuss the system utilities that are used to control and manage … [Read more...] about Database System Environment
Stream Control Transmission Protocol
Stream control transmission protocol (SCTP) is also a transport layer protocol like TCP and UDP. SCTP protocol includes the best features of TCP and UDP along with this it also supports the new applications supporting voice over the internet. In this section, we will discuss the working of SCTP and we will also discuss services provided by SCTP along with its … [Read more...] about Stream Control Transmission Protocol
Transmission Control Protocol (TCP)
The transmission control protocol (TCP) is a connection-oriented and reliable transport layer protocol that provides process-to-process communication. Like in user datagram protocol (UDP), we refer to the data transfer unit as user datagram in TCP we refer it to as a segment. Content: Transmission Control Protocol Introduction TCP Working TCP Services Advantages … [Read more...] about Transmission Control Protocol (TCP)