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encryption A method for keeping sensitive information confidential by changing data into an unreadable form.
English Query Refers to a Microsoft application development product that enables users to ask questions in English, rather than in a computer language, such as SQL. For example, you might ask, "How many customers bought products last year?" rather than prepare an equivalent SQL statement.
entity The main object in an entity-relationship model, which can be deduced by case study examination. Entities represent the things, places, people, concepts, and things involved in a real-world situation, and contain within them properties or attributes that relate to them.
entity decomposition The breaking down of attributes so that they are made into a more basic form. Entity decomposition needs to be undertaken before applying attributes into the final data model.
execution plan The method in which the query optimizer has chosen to execute a SQL operation.
extent lock A lock covering eight contiguous data or index pages.
