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Define the phases of two phase locking protocol
Growing phase: a transaction may get locks but not release any lock.
Shrinking phase: a transaction might be release locks but may not get any new locks.
State the Object Design for Processing The object design phase comes after analysis and system design phase. The object design phase includes implementation details like as i
Define Timestamp ordering Ans In timestamp-based method, a serial order is made among the concurrent transaction by assigning to every transaction a unique nondecreasing number
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
What do you mean by Correlated subquery? Subqueries, or nested queries, are used to bring back a set of rows to be used by the parent query. Depending on how the subquery is writ
Which are the two ways in which entities can participate in a relationship? Total and partial are the two ways in which entities can participate in a relationship
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
What are segments in oracle? Segments - Each table has single field of disk space, known as segment, set aside for it in the tablespace. Segments consist of contiguous sections
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
tell me the functionality,advantages and disadvantages of student database
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