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Field (computer science) In computer science, data that has several parts, known as a record, can be divided into fields ( data fields ). Relational databases arrange data as sets of database records, so called rows. Each record consists of several fields; the fields of all records form the columns . Examples of fields: name, gender, hair colour.
Column (database) In a relational database, a column is a set of data values of a particular type, one value for each row of the database. [1] A column may contain text values, numbers, or even pointers to files in the operating system. [2] Columns typically contain simple types, though some relational database systems allow columns to contain ...
In computing, a database is an organized collection of data or a type of data store based on the use of a database management system ( DBMS ), the software that interacts with end users, applications, and the database itself to capture and analyze the data. The DBMS additionally encompasses the core facilities provided to administer the ...
Database schema. The database schema is the structure of a database described in a formal language supported typically by a relational database management system (RDBMS). The term "schema" refers to the organization of data as a blueprint of how the database is constructed (divided into database tables in the case of relational databases ).
Database design. Database design is the organization of data according to a database model. The designer determines what data must be stored and how the data elements interrelate. With this information, they can begin to fit the data to the database model. [1] A database management system manages the data accordingly.
A relational database ( RDB [1]) is a database based on the relational model of data, as proposed by E. F. Codd in 1970. [2] A database management system used to maintain relational databases is a relational database management system ( RDBMS ). Many relational database systems are equipped with the option of using SQL (Structured Query ...
Data field label = Employee Name or EMP_NAME Data field value = Jeffrey Tan The above description is a view of data as understood by a user e.g. a person working in Human Resource Department. The above structure can be seen in the hierarchical model, which is one way to organize data in a database. In terms of data storage, data fields are made ...
A basic unit of information built on standard structures having a unique meaning and distinct units or values. In electronic record-keeping, a combination of characters or bytes referring to one separate item of information, such as name, address, or age. In the areas of databases and data systems more generally a data element is a concept ...