This presentation show different questions are asked in interviews for post of SQL, PLSQL Developer in IT Industry. This gives in idea how question fired to candidates.
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Q. 13 What is different between %Type and %RowType ?
%rowtype: This is structure is used to define records like
table or views. This contains single for entire database
object.
Answer is
%type: It is used to define individual field of database.
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Q. 15 What is different between package specification and
package body ?
Package Specification: It contains only definition of
database objects like variable, records types, procedure and
function etc.
Answer is
Package Body: This contains actual code.
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Q. 18 Can we use commit in trigger ?
No, There is no need to use commit in trigger because
trigger are auto committed.
Answer is