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How does the two phase protocol ensure serializability in database schedules? Ans: A transaction is termed to follow the two-phase locking protocol if all locking operations
Advantages of Observation Methods: Bailey has pointed out four advantages of observation: 1. Superior in Data Collection on Non Verbal Behavior: When a person a opi
Do NOT use the timestamp type. Use separate date and time data types only. Figure out how to define an SQL insert statement that uses built-in SQL (or MySQL) functions to define
A Functional dependency is described by X Y between two groups of attributes Y and X that are subsets of R specifies a constraint on the possible tuple that can make a relation
difference between internal schema and external schema in DBMS
Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
Meaningful use refers to the use of certified EHR technology to "enhance quality, efficiency, and reduce health disparities
Sparse and Dense Indexes These indexes in principle are the similar as that of indexes used at the back of the book. The key facts of the indexes are: They are arranged
The Form input elements are: Reporter name text type input Password
Soccer player ER Diagram to Relational database schema
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