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Explain I command in QBE ?
I : It is the command in QBE that is used to insert tuple (s) into the database
i need help with creating database system for a library
definition and its work
what are the topics in data management
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
Problem : (b) A deductive database system is essentially the outcome of applying mathematics logic to database management, where logic is used for both data representation and
what does glory be mean
Illustrate the statement 'Projection operation distributes over the union operation'. Give an example. Ans: Π L (E 1 ∪ E 2 ) = (Π L (E 1 )) ∪ (Π L (E 2 )) This says th
design a generalization specialization hierarchy for a motor vehicle sales company. the company sells motorcycles, passenger cars, vens and buses.
List the string operations supported by SQL? 1) Pattern matching Operation 2) Concatenation 3) Extracting character strings 4) Converting among uppercase and lower cas
Define what Immediate database modification technique uses? Ans: Both undo and redo.
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