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SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...
The states of a created conceptual schema are transformed into an explicit mapping, the database schema. This describes how real-world entities are modeled in the database. "A database schema specifies, based on the database administrator 's knowledge of possible applications, the facts that can enter the database, or those of interest to the ...
Curriculum mapping is a procedure for reviewing the operational curriculum [1] as it is entered into an electronic database at any education setting. It is based largely on the work of Heidi Hayes Jacobs in Mapping the Big Picture: Integrating Curriculum and Assessment K-12 ( ASCD , 1997) and Getting Results with Curriculum Mapping (2004, ASCD).
Business analytics (BA) refers to the skills, technologies, and practices for iterative exploration and investigation of past business performance to gain insight and drive business planning. Business analytics focuses on developing new insights and understanding of business performance based on data and statistical methods .
Data modeling during systems analysis: In systems analysis logical data models are created as part of the development of new databases. Data modeling is also used as a technique for detailing business requirements for specific databases. It is sometimes called database modeling because a data model is eventually implemented in a database. [4]
For just the second time in NFL history, a playoff game is on the move. With deadly wildfires in the Los Angeles area, the league is opting for safety first to wrap up wild-card weekend.. There ...
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