by Markus Winand.

Returns, Refunds and Cancellations Policy


You are permitted to withdraw from this contract within fourteen (14) business days of the receipt of ordered goods. A withdrawal statement should be mailed to office@winand.at within the period - there is no need to specify the reason(s). In case of withdrawal, we only refund the amount charged (in full or in part) against return of the delivered goods. The cost of returning the goods is the responsibility of the customer. Goods must be returned in its original packaging and in an unused and re-sellable condition. We reserve the right to charge a reasonable fee if goods are returned in poor condition.

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About the Author

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Markus Winand provides insights into SQL and shows how different systems support it at modern-sql.com. Previously he made use-the-index-luke.com, which is still actively maintained. Markus can be hired as trainer, speaker and consultant via winand.at.

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The essence of SQL tuning in 200 pages

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Markus offers SQL training and consulting for developers working at companies of all sizes.
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