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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.
List the table modification commands in SQL? A) Deletion B) Updates C) Insertion D) Update of a view
definition and its work
Explain controlled redundancy? Controlled redundancy : The replication of data within the data warehouse for the purposes of improved data access or understand ability.
What are the properties of transaction? There are three properties of transactions :- A) Atomicity B) Consistency C) Isolation
Data slice explanation
Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.
prototype of a distributed information system for a national car part retail outlet chain.
What are the difference between clustered and a non-clustered index? A clustered index is a special type of index that reorders the way records in the table are physically stor
1. Create the tables for the play-scheme database as specified in the TMA. 2. Enter the data as given in the spreadsheet. 3. Create queries to retrieve specified information
Write an sql statement to find what is the percentage of home policies which are from the state of Arizona out of all Home policies by Policy Value.
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