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If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
Joe Celko, wellknown columnist for the leading database magazines, shares his most useful timesaving tips and tricks for SQL programming to help readers progress from a casual SQL user to becoming an expert in SQL programming. Celko uses common programming problems as a basis for presenting a collection of advanced SQL programming techniques.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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