"A Relational Model of Data for Large Shared Data Banks". The term relational database was originally defined by and is attributed to Edgar Codd at IBM Almaden Research Center in 1970. Relational databases are currently the main way in which companies store information like financial records, medical records, personal information and manufacturing and logistical data. The term "relational database" often refers to this type of software.
#Easy free relational database software
The software used to do this grouping is called a relational database management system (RDBMS). Hence, such a database is called a "relational database."
A relational database is a database that allows administrators and users to set up connections among different data records, and to use those connections to view and manage data. Such a grouping uses the relational model (a technical term for this is schema). A database is a set of data stored somewhere, organized in a schema (we’ll discuss this in more detail later on). This information can be grouped by year, or by sale price, or by buyer's last name and so on.
The resulting groups of data are organized and are much easier for many people to understand.įor example, a database has all information about real-estate sales in a town. Open ModelSphere - a free relational (conceptual and logical) data modeling tool/software (data modelling tool) and database modeling tool (database modelling tool). The database matches data by using identical information that is found within the data set. QuintaDB offers easy to use and modify table columns and changes both data and table structure, while providing web users to see and.
An image showing the relationship between the two tables, as indicated by the arrowĪ relational database is a way of storing information ( data). Easy Database: Relational web DB builder takes away all the database complexities with creating tables, modifying the structure of the tables and maintenance problems like - Storage, Availability and Security.