Last updated: August 9, 2026
This Privacy Policy explains how Practice Window Functions ("we," "us," or "our") handles information when you visit practicewindowfunctions.com (the "Site"), use its SQL practice features, contact us, or purchase a digital product.
We use information to:
The Site uses an essential session cookie for core operation and rate limiting. Blocking essential cookies may prevent parts of the Site from working correctly.
Google Analytics uses cookies and similar technologies to help us understand Site usage. You can learn more about how Google uses information from sites that use its services in Google's explanation for partner sites and review Google's Privacy Policy.
Mediavine provides consent and privacy-choice controls where applicable. You may also be able to control cookies through your browser. The Mediavine notice below explains the advertising technologies it uses and the choices available to you.
We may disclose information to:
For information about the sale or sharing of personal information for interest-based advertising, and how to opt out where applicable, review the Mediavine notice below and use the Do Not Sell or Share My Personal Information control displayed on the Site.
Dodo Payments acts as the merchant of record for digital-product purchases and handles customer and payment information, payment processing, applicable taxes, receipts, refunds, digital delivery, and related transaction functions. Dodo acts as an independent controller of the personal information it processes for those services. Its handling of that information is governed by Dodo Payments' Privacy Policy.
Where applicable law requires a legal basis, we process personal information as necessary to provide requested Site features or fulfill a purchase, comply with legal obligations, pursue legitimate interests such as operating and securing the Site, or based on consent when consent is requested. You may withdraw consent through the available privacy controls, but withdrawal does not affect processing that occurred before consent was withdrawn.
We retain information only for as long as reasonably necessary for the purposes described in this policy, including providing the Site, responding to messages, maintaining business and transaction records, resolving disputes, enforcing agreements, meeting legal obligations, and protecting the Site. Retention periods vary by the type of information and why it is processed. Service providers may retain information under their own policies and legal obligations.
We use reasonable administrative, technical, and organizational safeguards designed to protect personal information. No website, transmission, or storage system can be guaranteed to be completely secure.
Depending on where you live, you may have rights to request access to, correction of, or deletion of personal information; obtain a copy of certain information; object to or restrict certain processing; withdraw consent; or opt out of certain sales, sharing, targeted advertising, or profiling. You may also have the right not to receive discriminatory treatment for exercising a privacy right.
To submit a request concerning information controlled by Practice Window Functions, please contact us. We may need to verify your identity before completing a request, and applicable law may permit or require us to deny or limit some requests.
For advertising-related choices or requests involving data handled by Mediavine, use the Mediavine privacy controls displayed on the Site or the contact information in the Mediavine notice below. For information handled by Dodo Payments or Google, consult the provider's privacy policy and privacy controls.
The Site is intended for a general audience and is not directed to children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided personal information through the Site, please contact us.
Practice Window Functions is operated from the United States. We and our service providers may process information in the United States and other countries, where privacy laws may differ from those in your location. Where required, providers use safeguards intended to protect information transferred across borders. Additional information about Mediavine's international transfers appears in the Mediavine notice below.
The Site may link to websites and services operated by others. Their privacy practices are governed by their own policies, and this Privacy Policy does not apply to those third-party sites or services.
We may update this Privacy Policy to reflect changes to the Site, our practices, or legal requirements. When we do, we will revise the "Last updated" date at the top of this page.
If you have questions about this policy or want to submit a privacy request concerning Practice Window Functions, please contact us.
The Mediavine Advertising Privacy Notice that follows is supplied and maintained by Mediavine. It describes Mediavine's collection, use, disclosure, sale or sharing of personal information, advertising practices, retention, international transfers, security measures, and privacy choices. That appended notice forms part of this Privacy Policy and should be read together with the site-owned sections above.