They borrow aspects of navigational databases, hierarchical databases and relational databases. Graph databases are technologies that are translations of the relational OLTP databases. JPQL is used to make queries against entities stored in a relational database. A database organized in terms of the relational model is a relational database. There are three main techniques for handling relational data in a NoSQL database. See navigational database and NoSQL for alternatives to the relational model. First normal form is an essential property of a relation in a relational database. There are five aggregate functions that are included with most relational database systems. It just describes the partial algebra as a relational structure . Social capital is split into three dimensions&colon; the structural, the relational and the cognitive dimension. Contradictions are the core concept of relational dialectics. Such models are useful for sensor fusion and relational learning. Language exhibits synthesis in two ways&colon; derivational and relational morphology. The tuple with labeled elements used in the relational model has a record type. It is based on relational frame theory.