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What are column-name qualifier used ? More DBA job interview questions and answers at
http://dba.fyicenter.com/Interview-Questions/
(Continued from previous question...) What are column-name qualifier used ? Column-name qualifier are used as table designator to avoid ambiguity when the column names referenced exist in more than one table used in the SQL statement. Column-name qualifier are used in correlated references. (Continued on next question...)
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