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Define instance and schema?
Instance: Collection of data stored in the data base at a certain moment is
Schema: The overall design of the data base is known as the data base schema.
How many types of Views are there? There are Four types of views:- Database View Help View Projection View Maintenance View
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;
An important first step to the statistical analysis of data is to "get to know your data". The following tasks should contribute to this. (a) To the right of the dataset cons
external view of DBMS in healthcare department?
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Why were functional methods fashionable in early days? These are inspired directly by computer architecture and thus popular among computer scientist in early days. The divisio
need a DBMS system on any data for assignment.
What is Cross Product? Simply Cross product is Binary Operator
Write a query to define tables students and teachers as sub tables of people? Create table students of student under people Create table teachers of teacher under people
what characterizes the levels in RAID technology
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