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Locks:Serialisabilty is just a test whether a given interleaved schedule is ok or has a concurrency related trouble. Though, it does not make sure that the interleaved concurrent transactions do not have any concurrency related trouble. This can be completed by using locks. So let us talk about what the dissimilar types of locks are, and then how locking ensures serialsability of implementing transactions.
what is the need of a log in dbms
What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.
Ask qu. Write a XML with database with book details (Book ID, Title, Author, subject, published year, language, vendor, and price).estion #Minimum 100 words accepted#
What is a recursive relationship? Give an example not used in the text. A recursive relationship is a relationship among an entity and itself. For example, given the entity PER
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
What is banker's algorithm? Banker's algorithm is a deadlock avoidance algorithm that is applicable to a resource-allocation system with multiple instances of each resource ty
This assignment is worth 45% of your final grade for this module. Marks will be awarded as follows: Prototypes (wireframe and web based prototype) You are expected
We will explain here an example database application having COLLEGE database and use it in showing several E-R modelling concepts. College database remains track of faculty, Stu
Differentiate between Primary and secondary storage? Primary and secondary storage - Primary storage device stores the data temporarily. Primary storage is commonly used thro
How are tables stored on Disk? We realise that every record of a table can have different amounts of data. This is due to in some records; some attribute values may be "zero".
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