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Describe Embedded Query Language?
Embedded Query Language - A query language (e.g., SQL) can be implemented in two ways. It can be used interactively or embedded within a host language. The use of query language commands inside a host language (e.g., C, Java, etc.) program is known as embedded query language. While same capabilities are supported for a variety of host languages, the syntax sometimes varies.
Explain Candidate Key and Super Key A super key is a set of one or more than attributes that, taken collectively, permits us to identify uniquely a tuple in the relation. Wher
Explain the Deferred Update The deferred update methods do not physically update the database on disk till after a transaction reaches its commit point; after that the updates
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
Lack of Redundancy We have talked about the problems of repetition of information in a database. Such repetition should be stay away as much as possible. Let us state once again t
Meaningful use refers to the use of certified EHR technology to "enhance quality, efficiency, and reduce health disparities
What is Trigger? Trigger: A database trigger is procedural code which is automatically executed in response to specific events on a particular table in a database. Triggers can
Define the term Domain. For each n every attribute there is a set of permitted values known as the domain of that attribute.
how map binary relation one to one
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
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