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Explain the two types of participation constraint.
Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates in at least one relationship in R.
Partial: if only some entities in E participate in relationships in R, the participation of entity set E in relationship R is said to be partial.
Fifth Normal Form (5NF) These relations still have a difficulty. While defining the 4NF we mentioned that all the attributes depend upon each other. Whereas creating the two ta
Define the terms i) Entity set ii) Relationship set Entity set: The set of all entities of the similar type is termed as an entity set. Relationship set: The set of all rela
What are the typical phases of query processing
Ask question #Minim 100 words accepted#what is recovery management component in database management system and how it is useful
prototype of a distributed information system for a national car part retail outlet chain.
Oracle & Distributed Databases 1. Differentiate between PL/SQL functions and procedures. 2. Draw the diagram of logical structure of oracle database and explain it in brief.
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 bu
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
under what condition log based recovery is feasible?
Soccer player ER Diagram to Relational database schema
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