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Define an operator that a Relational Algebra does not have
Ans: Relational Algebra does not have Aggregation operators.
various techniques of hashing?
List the table modification commands in SQL? A) Deletion B) Updates C) Insertion D) Update of a view
What are the kinds of Strings? -A binary string in MySQL is one that MySQL treats as case sensitive in comparisons. -A non binary string in MySQL is one that MySQL does'nt
What is a recursive relationship? Give an example not used in the text. A recursive relationship is a relationship among an entity and itself. For example, given the entity PER
What are the uses of ODBC? Under what circumstances we use this technology? ODBC expose database capabilities within a standardized way to the application programmer by an ap
external and internal mapping with examples
What does Aggregation mean?
#questiononsider the following relation: CAR_SALE =(CAR_ID,oPTION_TYPE, Option_listpreice, Sale_date, Option_discountedprice)..
tell me the functionality,advantages and disadvantages of student database
Explain Hierarchical Model ? Hierarchical Model - It was established to model several kinds of hierarchical organizations which exist in the real world. It uses tree structur
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