Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
An ideal data dictionary should have everything a DBA wants to know about the database.
1 Conceptual, External, and internal database descriptions.
2. Descriptions of attributes (fields), entities (record types) as well as origin, cross- references and meaning of data elements.
3. Authorisation ,Synonyms and security codes.
4. Which external schemas are used by which programs, what their authorisations are, and who the users are.
5. Statistics about database and its usage containing number of records, etc.
A data dictionary is executed as a database so that users can query its contents. The cost efficiency of a data dictionary increases as the difficulty of an information system increases. A data dictionary can be an enormous asset not only to the DBA for database design, execution and maintenance, but also to managers or end users in their project planning.
Process to find the non-concurrent objects Once we find out non-concurrent (mutually exclusive) objects, we can fold all objects together in one thread of process or control. O
What is the difference between internal tables and extract datasets? The lines of an internal table always have the similar structure. By using extract datasets, you can ha
Having Clause with sub queries: First we have to recollect the GROUP BYclause. The following query searches the minimum salary in every department. SELECT DEPTNO, MIN (SAL)
3NF Normal Form A relation schema R is in 3NF if it is in 2NF and for each FD X A either of the following is true X is a Super-key of R. A is a prime attribute of R
What is a records management consultation? Our organization is an authority for disseminating your specific requirements and giving you with a solution to effectively manage yo
Need a sample of a clinic database relationships
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
Attributes and its types explain?
how design database from begining
The users who use easy-to-use menu are called ? The users who use easy to use menu are called as Naïve users.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd