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Aggregate functions
Example: Find the total number of employees.
SELECT COUNT (*) FROM EMP;
Example: //Find the minimum, maximum and average salaries of employees of department D1//.
SELECT MIN(SAL), MAX (SAL), AVG(SAL) FROM EMP
WHERE DEPTNO = 'D1' ;
how the string works as keyword?
define locking in simple language and decribed it
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What is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.
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Assigning Responsibility for Operation Many operations might have obvious target objects, but some of these operations could be used at numerous places in an algorithm, by one
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This language that enable user manipulate to or access data as organized by appropriate data model. Low level or Procedural DML : DML needs a user to specify what data ar
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