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It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report.
False. It is not essential.
#question benefits and limitations of data models..
What is an object ID? Each class-derived table has an ID for primary key, one or more object IDs form primary key for association derived tables. An object ID is equivalent dat
Lack of standards and experience: The lack of standards has considerably limited the potential of distributed DBMSs. As well, there are no tools or methodologies to help users cha
I need a professional to prepare a database to collect and store basic information. The information can be basic info such as contact details etc. One requirement i have is f
What is Management System? A management system is a set of rules and process which help us to create organize and manipulate the database. It also helps us to add, change delet
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
What are the various symbols used to draw an E-R diagram (any 3)?
give me a diagram about physical or internal level
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
Example : Search the name, department number and salary of employees drawing minimum salary in that department. SELECT ENAME, SAL, DEPTNO FROM EMP WHERE SAL IN (SELECT MI
Thank you, for your expert advice. You have provided very useful answer.
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