php - What is the most suitable way to work with databases in Zend Framework? -

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i'm developing web application zend framework. in documentation says ...

"be aware though table data gateway pattern can become limiting in larger systems."

  • what drawbacks of using table data gateway ?
  • what suitable way handle database zend ?

drawbacks of using table data gateway can limit writing complex queries. custom queries such union, sub query , using where clauses such 

 or (b , c) or d

best way write complex queries write complex query hand. best way execute them using zend_db_adapter


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