database structures

What Is The Logical Structure Of A Database?

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What Is The Logical Structure Of A Database? A Logical database uses only a hierarchical structure of tables i.e. Data is organized in a Tree-like Structure and the data is stored as records that are connected to each other through edges (Links). Logical Database contains Open SQL statements which are used to read data from

What Is Data Modelling In Database?

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What Is Data Modelling In Database? Data modeling is the process of creating a visual representation of either a whole information system or parts of it to communicate connections between data points and structures. … These business rules are then translated into data structures to formulate a concrete database design. What is data Modelling used