Explain the difference between a hot backup and a cold
backup and the benefits associated with each
Hot Backup
taking backup, When the database is up & Running
making database in archivelog mode ,
using the command like alter database begin backup
Cold Backup
taking backup when is database is off.
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Explain the difference between a FUNCTION, PROCEDURE and PACKAGE.
What command would you use to encrypt a PL/SQL application?
Explain the use of table functions.
what is the querry to get first 10 records from the emp table?(emp no is the primary key)
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how to display last 5 letters from a name (take emp table ename )
What does coalescing a tablespace do?
Give two examples of how you might determine the structure of the table DEPT.
Name three advisory statistics you can collect.
What is the Query Optimizer. How you optimize your qeury.
Differentiate between earned discounts and unearned discounts? : oracle accounts receivable
1.In a table Gender is a column in that male and female are the two data.In a single statement i have to modify all male to female and all female to male vice versa. 2.In a single query i need the count of male data,count of female and total count