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Discussion subject Change of Codd's RDBMS rule after research started by Shekhar P Sinha successful research done on 4th of July Saturday 2009 in RDBMS-Oracle?
Discuss subject: " Change of Codd's RDBMS Rule after Research" Dear Sir Madam, Myself, Shekhar P. Sinha, have a query for you that in "RDBMS-Oracle only a single primary key is allowed in a single table" but my research have found very-very successfully that " I can define more than one primary key in RDBMS-Oracle single table" I can give you " Lab Practical Demo and test it very-very successfully " If you want to know then contact me in my this mail id :shekhar_shk@rediffmail.com and contact me on my mobile no : +91-0361-98640-63046 with regards, Thanking you, Shekhar P. Sinha.
Which field MS Access will not allow you to delete?
A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.
What is key in rdbms?
When a database table has a key which consists of more than one field, a partial key refers to any one of those fields.
In Microsoft Access what does the key symbol mean?
It indicates the field or fields that are the primary key.
What is partial key in RDBMS?
When a database table has a key which consists of more than one field, a partial key refers to any one of those fields.
What are the application of RDBMS?
what is rdbms and its application
Is foxpro a rdbms?
yes it is a rdbms
Is Fox Pro dbms or rdbms and why?
every rdbms is a dbms.as of a standard there is a criteria for any prog. lang. to become rdbms. this is defined in codds 12 rules. this all together if satisfied then any prog lang can be said to be a rdbms. but in practice we come across many examples where a prog lang is not rdbms but still provide relational database very often. ex foxpro is not rdbms because it does not satisfy one of the codds 12 rule i.e. of defining a foreign key. in foxpro you cannot define a foreign key. but since it has tables in it and can provide relations we can term foxpro as pseudo rdbms(partial rdbms)..........
What does primary key mean in ict?
it key that will enable you link the two tables together for relationship
What is bCnf in rdbms?
It is boyce-codd normal form IN NORMALIZATION WHICH SHOULD BE IN 3NF and EVERY DETERMINAT IS A CANDIDATE KEY .
What do you mean by adhoc query capability in rdbms?
It means the capability to record- at-a time access.
Can super key be as primary key?
I think super key is treated as the primary key because in a table their will be only one primary key.
