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Remove one duplicate column value from multiple
How to remove only one column values from the duplication of values in that column without using any other column references in that table?
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MultiSet table with UPI
Multiset table with UPI will allow duplicates or not?
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SQL Query
How to display nth lowest record in a table for example? How to display 4th lowest (salary) record from customer table?
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Diplay Records using ROWNUM, MINUS & UNION
Display 6th & 9th records only from the table using ROWNUM & MINUS & UNION ?
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RowSet Vs ResultSet
Why is RowSet implementation is beneficial over ResultSet?
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Collections get nth Record from Index by Table
How to get nth record from index by table?
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Difference between user and end-user
Types of users with their duties using suitable examples
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Unique and Non-unique keys
Discuss the difference between unique and non-unique keys
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Primary Key
Why is the choice of primary key important and are three characteristics of an ideal primary key?
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Intersection table
What is an intersection table and why is it important?
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