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  2. Object–relational mapping - Wikipedia

    en.wikipedia.org/wiki/Object–relational_mapping

    For example, consider an address book entry that represents a single person along with zero or more phone numbers and zero or more addresses. This could be modeled in an object-oriented implementation by a "Person object " with an attribute/field to hold each data item that the entry comprises: the person's name, a list of phone numbers, and a ...

  3. Telephone number verification - Wikipedia

    en.wikipedia.org/wiki/Telephone_number_verification

    A JavaScript function can check to see if a phone number is a valid format, i.e., is numeric, starts with a valid set of numbers ("0" for local, or an international dialing prefix followed by a valid country code) and is not too short to be a phone number. At first a JavaScript function is used to clear out any spacer characters.

  4. Why am I asked to verify my account after signing in?

    help.aol.com/articles/why-am-i-asked-to-verify...

    You may be prompted to get a verification code at your recovery phone number or recovery email address for any of the following reasons:

  5. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/Luhn_algorithm

    Therefore, systems that pad to a specific number of digits (by converting 1234 to 0001234 for instance) can perform Luhn validation before or after the padding and achieve the same result. The algorithm appeared in a United States Patent [ 1 ] for a simple, hand-held, mechanical device for computing the checksum.

  6. 2-Step Verification with a Security Key - AOL Help

    help.aol.com/articles/2-step-verification-with-a...

    Sign in and go to the AOL Account security page.; Under "2-Step Verification," click Turn on.; Click Security Key.; Follow the onscreen steps to add your Security Key. Add additional recovery methods in case your Security Key is lost.

  7. Google Web Toolkit - Wikipedia

    en.wikipedia.org/wiki/Google_Web_Toolkit

    Version 2.0 of GWT offers a number of new features, [26] including: In-Browser Development Mode (formerly known as Out Of Process Hosted Mode, OOPHM): prior to version 2.0, the hosted mode was used to embed a modified browser to allow running the bytecode version of the application during development.

  8. Telephone numbers in Germany - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Germany

    Numbers starting with 198 and 199 are reserved for routing of service numbers and network-internal use. 31-x; The numbers 31-0 and 31-1 are test numbers that reach a recorded announcement indicating the selected carrier for long-distance and local calls, respectively. 32-xxxxxxxxx; National subscriber numbers have been allocated the area code 32.

  9. Recover a forgotten username - AOL Help

    help.aol.com/articles/recover-a-forgotten-username

    2. Enter your recovery phone number or email address that you have access to. 3. Click Continue. 4. Click Yes, send me a verification code. - We'll send a code to the phone number or email address you provided. 5. Enter your verification code. 6. Click Continue. 7. Choose the account you'd like to sign in to.