Are null values same as that of zero or a blank space?
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What is oracle and pl sql?
When the mutating error will comes? and how it will be resolved?
how can we destroy the cookie? : Sql dba
Why do we use sql constraints? Which constraints we can use while creating database in sql?
If we declare constraints Unique and Not null on a single column then it will act as a Primary key, so what is the use of primary key??
What is the difference between unique and primary key constraints?
what are %TYPE and %ROWTYPE? what is the difference?
7 Answers ICICI, Saama Tech, Sail,
there are .......different types of serializability
What is right join in sql?
There are 5 records in a table and we have implemented two triggers that are :pre_query and post_query how many times these triggers will fire.
Cite the differences between execution of triggers and stored procedures?
Can a table contain multiple foreign key’s?
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