Nylig tilføjet Joe Celkos Trees and Hierarchies in SQL for Smarties by Joe Celko BtykPvNi

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The demand for SQL information and training continues to grow with the need for a database behind every website capable of offering webbased information queries. SQL is the de facto standard for database retrieval and if you need to access update or utilize data in a modern database management system you will need SQL to do it. The Second Edition of Joe Celkos Trees and Hierarchies in SQL for Smarties covers two new sets of extensions over three entirely new chapters and expounds upon the