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SELECT Statement
This statement is used for retrieving information from the databases. It can be coupled with many clauses. Let us talk about these clauses in more detail:
Using Arithmetic operator
Example:
SELECT ENAME, SAL, SAL+300
FROM EMP;
what factors might influence a company to outsource its IT infrascture.
Set Difference If R1 and R2 are two union compatible relations or relations then result of R3 =R1- R2 is the relation that have only those tuples that are in R1 but not in R2.
give some example real-life situations where DBMS are most suiitabe
What is the use of keyword ISA? The use of keyword ISA is to show that a class is a specialization of another class.
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
explain in detail about time stamp orderting/
What type of view of total database content? Data base content Conceptual view of total database contain.
Text Processing: Use readLines to read SOU.txt into R. Create a vector called Pres containing the names of the presidents giving each speech. To do this, rst identify the lin
INSERT INTO command : Values can be inserted for all columns or for the selected columns Values can be given by sub query. In place of values parameter substitution
System error :These contain errors in database system or the OS, example, deadlocks.Such errors are fairly hard to detect and need reprogramming the erroneous components of the sys
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