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Using Literal Character String
Example:
To print IS A as one string with column name employee
SELECT ENAME || ' IS A ' || JOB AS "EMPLOYEE" FROM EMP;
What is an Operand? The data on which the operation is to be performed is known as an Operand
Which model is record based logical model? Network Modelis basically known as record based logical model.
Mention the several levels in security measures. A) Database system B) Operating system C) Network D) Physical Human
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Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
it can be possible to create any table without primary key
a set of possible data value of an attribute is called??
Explain the ACID properties of a transaction Ans: ACID properties are a significant concept for databases. The ACID stands for Atomicity, Consistency, Isolation, and Durability
What is a view? Make a view of EMP table named DEPT 20, to display the employees in department 20 and their annual salary. Ans: View is a virtual table that does not consist
What are the disadvantages of file processing system? The drawbacks of file processing systems are a) Data redundancy and inconsistency b) Complexity in accessing data
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