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What are the two statements regarding transaction? The two statements regarding transaction of the form are:- A) Begin transaction B) End transaction
What is a cascading update? Referential integrity constraints needs that foreign key values in one table correspond to primary key values in another. If the value of the primar
#questiononsider the following relation: CAR_SALE =(CAR_ID,oPTION_TYPE, Option_listpreice, Sale_date, Option_discountedprice)..
Consider employee table of (i) and list names of department(s) for which average salary for department is more than 10,000. (SELECT d_name FROM dept WHERE d_code IN (SELECT d_c
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
What is Explicit update In explicit update, each derived attribute is defined with respect to one, or more fundamental base object(s). The object designer determines that de
What exactly is the concept of Functional Dependencies? And how do we associate this concept with the logic of Super-keys, Candidate Keys, etc? Given Relation R(A,B,C,D,E) with de
The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.
Advantages of Data Distribution The primary benefit of distributed database systems is the ability to access and share data in a reliable and efficient manner.
What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
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