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PL/SQL, how would you trap and report on errors (Oracle specific)? Define a primary key constraint on a table? What is a database trigger? How
PL/SQL, how would you trap and report on errors (Oracle specific)?
Define a primary key constraint on a table?
- What is a database trigger?
- How will you use the Coalesce function and the nvl functions (Oracle specific)?
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In PLSQL you can trap and report errors using exception handling constructs like BEGINEXCEPTIONEND Oracle provides a set of predefined exceptions that ...
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Concepts of Database Management
Authors: Philip J. Pratt, Mary Z. Last
8th edition
1285427106, 978-1285427102
