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Synonyms and Indexes Some of the essential properties of indexes are: An Index is a schema Object Indexes can be formed explicitly or automatically Indexes are m
Using SQL create a view RS for the relations R and S. The view consists of the columns A and D renamed as X and Y in that order. Insert a tuple into it. Show the contents of t
What are axioms? Axioms or rules of inference give a simpler technique for reasoning about
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
What is DML compiler? DML Compiler: Translates DML statements in a query language within low level instructions understandable through the query evaluation engine. Attempts to
Meaningful use refers to the use of certified EHR technology to "enhance quality, efficiency, and reduce health disparities
Define lock? Lock is the most common used to execute the requirement is to permit a transaction to access a data item only if it is currently holding a lock on that item.
What is relational model feature? A relational model feature is much more data independence than some other database models.
What are the three types of data sources used with ODBC? An ODBC file data source is a file that can be shared between database users. An ODBC system data source is one that is
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