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What are the storage types?
The storage types are:
a) Volatile storage
b) Nonvolatile storage
Define instance and schema? Instance: Collection of data kept in the data base at a particular moment is known as an Instance of the database. Schema: The o
Explain four causes for failures in data warehouse projects
What are the various forms of data transparency? a) fragmentation transparency b) replication transparency c) location transparency
Describe the benefits of OOD techniques OOD techniques are very useful for development of large and complex systems. It has been noted that large projects that are developed u
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
Define data conversion? Helpful to load data into temporary staging tables. Then can write SQL code to do much of data processing. SQL code is simpler and faster to write than
1 - Serial RS232 comm port comunication 2 - NanoHTTPD serving a few processed pages 3 - System tray application to indicate status and access configuration forms 4 - SQLit
What is deadlock? Neither of the transaction can ever proceed with its normal implementation. This situation is known as deadlock.
Consider the relation PERSON. If you want to display details of persons having age less than or equal to 30 than the select operation will be used as follows: σ AGE The resu
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
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