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Describe Data Manipulation language ? Data Manipulation Language (DML) - A data manipulation language is a language which enables users to access or manipulate data as organize
CREATE TABLE prodtrans ( pno number (4) ptype char (1) CHECK (ptype in ('I','R','S')), qty number (5) FOREIGN KEY pno REFERENCES product (pno) ON DELETE CASCADE);
define lock conversion
What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.
Describe the term- State Diagram State Diagram: An object could receive a sequence of the input instructions. The state of the object can differ depending upon sequence of in
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
diagrams and meaning
need to get answer for questions 3&4 on this page in part 1
what is check point in database management system
read-set(T) : Each data items that are read by a transaction T Timestamps : for all transaction T, the start-time and the end time are reserved for all the three phases.
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