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1. Create a subroutine that does the remote blast on the file protein.fa.
2. Pass that returned files from the blast to another subroutine that parses the output and sends it to an outfile. The returned values are the following: name, length, mismatches, and percent identity of the highest scoring hits.
3. You must demonstrate that you can set up an analysis pipeline using BioPerl, subroutines and Object Oriented Perl.
4. The file for processing is in Lecture10, protein.fa.
What are the different kinds of database end users? Discuss the major activities of each? End-Users - End-users are the people whose jobs need access to the database for que
The State of Newyork certifies firefighters throughout state keep track all of them, as well as the state’s of fire departments. Each fire department has unique department number
Database Manager It is the interface among low-level data, queries and application programs. Databases typically need a large amount of storage space. It is kept on disks, as
Forward Recovery (Redo): In this system the committed changes made by a transaction are reapplied to a previous copy of the database. In simpler
List the data structures implemented by the storage manager. The storage manager executes the following data structure a) Data files b) Data dictionary c) indices
Discuss deferred update technique of recovery. What are the advantages? Ans: The deferred update methods do not physically update the database on disk till after a transact
How does a query tree represent a relational algebra expression? Discuss any three rules for query optimisation, giving example as to when should each rule be applied. Ans
What is serializability? Explain its types? The data base system must control concurrent implementation of transactions, to ensure that the data base state remains consistent.
What is meant by functional dependencies? Consider a relation schema R and α C R and β C R. The functional dependency α ->β holds on relational schema R if in any legal relati
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
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