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Chapter 12. SQL Syntax > Varieties of SQL

Varieties of SQL

To some degree, syntax is standard among all of the SQL DBMSs. There are many DBMSs available; the most popular are those published by Microsoft and Oracle (Microsoft actually publishes two popular SQL DBMS offerings).

Flash techies seem to prefer open-source systems. For one thing, Microsoft and Oracle products cost money, while open-source systems are obviously free. For another, there is freedom to extend and debug the product and a community of sharing that benefits all. As in choosing PHP, we hope to benefit from and contribute to this community.


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