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(1) Insert into PERSON Violated constraint: - Key constraint Reason: - Primary key 1 already exists in PERSON. Dealing: - DBMS could ask the user to provide valid PER
Rearrange the Execution Order for Efficiency Rearranging execution order for efficiency means executing such job that requires less execution time. By rearranging the object
Normal 0 false false false EN-US X-NONE X-NONE
Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
This language that enable user manipulate to or access data as organized by appropriate data model. Low level or Procedural DML : DML needs a user to specify what data ar
What is a guard condition? Explain it with a suitable example. The guard-condition is a Boolean expression written with respect to parameters of triggering event and attributes
Question: (a) Discuss the difference between a composite key and a composite attribute. How would each be indicated in an E-R diagram? Support your answer with appropriate exam
find a name whose address is erode from student table
What are the various symbols used to draw an E-R diagram (any 3)?
Illustrate how you can use QBE to perform logical AND and OR operation
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