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What is OLTP (Online Transaction Processing)?
In OLTP - online transaction processing systems relational database design use the discipline of data modeling and generally follow the Codd rules of data normalization in order to make sure absolute data integrity. Using these rules complex information is broken down into its most easy structures (a table) where all of the individual atomic level elements relate to each other and satisfy the normalization rules.
Concatenation operator Example : Printing name and job as one string as column name employees: SELECT ENAME||JOB "EMPLOYEES" FROM EMP;
For the relations R and S given below: R S A B C 1 4 7 2 5 8 3 6 9
Create Student DB and perform delete operation? STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (section identifier, co
I have been given 8 differebt data warehouseing failure case studies. I need to question 4 questions for each
Question: AirwaysCentre, an international airline booking company currently uses a relational database system for their operations, which includes the following relations: P
entity relationship diagram about finance
Creating a view: A query can be embedded within the CREATE VIEW STATEMENT A query can have complex select statements containing join, groups and sub- queries A quer
What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.
Law Associates is a large legal practice based in Sydney. You have been asked to design a data model for the practice based upon the following specification: The practice emplo
explain five responsibilities of DBA?
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