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What are the three classes of SQL expression?
SQL expression consists of three clauses:
Select
From
Where
Timestamp Ordering Protocol A timestamp is a tag that can be attached to any transaction or any data item, which indicates a specific time on which the transaction or data item
complete assignment on the above title.
Problem 1. Create a PL/SQL program to insert data into student table and display the details of the student having Reg.No 1010 Writing a PL/SQL program to Insert data
what is completeness constrent?
Explain the ISA relationship Answer: ISA relationship - ISA notation is employed in generalization/ specialization to depict relationship among lower and higer level entity s
give some example real life situation where DBMS are most suitable
Derived horizontal fragmentation: Some applications may include a join of two or more relations. If the relations are stored at dissimilar locations, there may be a major overhead
What sorts of tables one can se in designing the hierarchy of a LDB? Tables, which are having Foreign Key relations.
You group has been hired by TrainingrUs.com to keeps track of training revenues. TrainingrUS.com wants you to keep scheduling. COURSE table contains following information:
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
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