Why is pl sql needed?
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there is A table and B table in A table there 5 rows and in b table there are 2 rows i am firing query select * from a,b what will be the output?
What are crud methods?
How do I make sql search faster?
how to create user in sql and how to set password for that?
How do you remove duplicates without using distinct in sql?
which will fire first ? Trigger or Constraint
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In a package if we have 10 procedures or functions,How to know which will execute first?
What does where 1/2 mean in sql?
What does data normalization mean?
what is the need of the cursor attribute notfound..(because using found attribute we can complete the task......found + negation operator = not found )
what are the differences among these table level lock modes - IN SHARE MODE, IN SHARE UPDATE MODE, IN EXCLUSIVE MODE ?
what is the forward decleration in packages?