What are the logical operations?
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How to handle a single quote in oracle sql?
when do u go for hash partitioning?
What is a package in oracle?
What is the purpose of tables, private synonyms and public synonyms in Oracle?
What is the data pump import utility?
what are Triggers?
What is the difference between truncate & delete command?
WHT ARE THE AGGREATE FUNCTIONS?
What is the purpose of init.ora. ? how many init.ora exist in oracle installation? suppose there are 3 database on one oracle server, how many init.ora do I have? what are various database objects? how will you identify memmory related performace issue in oralce? any idea about basic architure difference of oracle and db2? comment on which is better , with reasons? what is a fuction based index? is it recommended to use the same. ? what is global temporay table? what is teh signification of the parameter session_cached_cursor ?
What view(s) do you use to associate a users SQLPLUS session with his o/s process?
In my table i have 4 columns with 100 records but in that 4 columns one column contains all NULL values so can i add NOT NULL CONSTRAINT on that column......... ok if it is not possible, can i add NOT NULL CONSTRAINT from 101 Record Onwards?
What are the different types of synonyms?