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SQL Development
Optimizing Query Performance : Understanding optimization : The statement parser

The statement parser

The statement parser, a component of the SQL engine, performs the initial analysis of an SQL statement. It checks for correct syntax and transforms the statement from a character string into a query tree. The parser also performs several transformations of the query in order to simplify subsequent analysis and optimization steps. Among these transformations are translations of quantified predicates and taking into account references to views.
* Quantified predicates and other subqueries
* Views