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Codd's twelve rules [1] are a set of thirteen rules ( numbered zero to twelve) proposed by Edgar F. Codd, a pioneer of the relational model for databases, designed to define what is required from a database management system in order for it to be considered relational, i.e., a relational database management system (RDBMS).
Website. www .sqlite .org /fileformat2 .html. SQLite ( / ˌɛsˌkjuːˌɛlˈaɪt /, [4] [5] / ˈsiːkwəˌlaɪt / [6]) is a database engine written in the C programming language. It is not a standalone app; rather, it is a library that software developers embed in their apps. As such, it belongs to the family of embedded databases.
Microsoft Office 1.5 for Mac was released in 1991 and included the updated Excel 3.0, the first application to support Apple's System 7 operating system. Microsoft Office 3.0 for Mac was released in 1992 and included Word 5.0, Excel 4.0, PowerPoint 3.0 and Mail Client. Excel 4.0 was the first application to support new AppleScript.
AppleWorks (Apple II, 1984–1991) Developed by Rupert Lissner, [4] the original AppleWorks is one of the first integrated office suites for personal computers, featuring a word processor, spreadsheet, and database merged into a single program. It was released in 1984 as a demonstration product for the new 128k models of the Apple II line.
Navigational database. A navigational database is a type of database in which records or objects are found primarily by following references from other objects. The term was popularized by the title of Charles Bachman 's 1973 Turing Award paper, The Programmer as Navigator. [1] This paper emphasized the fact that the new disk-based database ...
Blockchain-based database. The blockchain-based database is a combination of traditional database and distributed database where data is transacted and recorded via Database Interface [1] (also known as Compute Interface) [2] supported by multiple-layers of blockchains. [3] The database itself is shared in the form of an encrypted /immutable ...
Berkeley DB. Berkeley DB ( BDB) is an embedded database software library for key/value data, historically significant in open source software. Berkeley DB is written in C with API bindings for many other programming languages. BDB stores arbitrary key/data pairs as byte arrays, and supports multiple data items for a single key.
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 ).