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Describe integrity and security? a) Domain constraint b) Referential integrity A value that appears in one relation for a given set of attributes also appear fo
During the deletion of a tuple two cases can happen: Deletion of tuple in relation having the foreign key: In this type of case simply delete the desired tuple. For example, in
What should be declared explicitly in the corresponding ABAP/4 Statements to access internal tables without header lines & why? Work Area. This is needed as the Work Area is
What is a trigger
A Relation Schema represented by R(A1, A2, ..., An) is made up of the relation name the list of attributes and R Ai that it contains. A relation is described as a set of tuples
What are the advantages of relational data model? Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer
how to construct labelled precedence graph for view serialiability.please explain insteps with one solved examples
How do I use strap on?#
How to create values of structured type? Constructor functions are used to make values of structured types. A function with the similar name as a structured type is a construct
Ask questiwhat is row indicator in database on #Minimum 100 words accepted#
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