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List the string operations supported by SQL?
1) Pattern matching Operation
2) Concatenation
3) Extracting character strings
4) Converting among uppercase and lower case letters.
Explain the term - Control as Concurrent Tasks As we know, any object can be implemented as a task in programming language or operating system. This is the most general approa
Soccer player ER Diagram to Relational database schema
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
what is natural join?
Do you have experts of the dbms
What is NULL? Simply NULL means not in value.
What was the method in which records are physically stored in a specified order according to a key field in each record ? A method in which records are physically stored within
Compare the Nested-loop join and block-nested loop join Ans: Nested loop join - It is costly as worst case cost, no. of block accesses needed is n r * b s + b r where b
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
Consider the relation schemas as follows. works (person name, company name, salary); lives (person name, street, city); located in(company name, city); managers (person name
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