What is difference between primary and secondary key?
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What are the 3 types of behavioral triggers?
What is pl/sql table? Why is it used?
What is crud sql?
mail-id table contains two columns(email_id,userid) it contains different types of mail-ids,and no of users. here username length is differ na,(ex- tamil@yahoo.com,joshua@hotmail.com like) now i want to fetch the email-ids only starting from '@' (ex-@gmail.com,@yahoo.com,@hotmail.com
What is sap sql?
What is secondary key?
Which are the most commonly used sql joins?
types of exceptions and what is meant by pragma autonomous_transaction ?what is the use.
What is the difference between cluster and non-cluster index?
State some properties of relational databases?
What is pl sql quora?
I have one table and column is c1 pk, c2 not null,c3 not null and 200 row in it and i add c4 column and value, how can is possible
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