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user_200449
user_200449
@user_200449
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2 questions
About Me
// Hello, World !
Top Answers
  1. Has reCaptcha been cracked / hacked / OCR'd / defeated / broken?
    8 votes
  2. Practical non-image based CAPTCHA approaches?
    5 votes
Top Questions
  1. NULL permitted in Primary Key - why and in which DBMS?
    20 votes
    6 answers
  2. Why to use "not null primary key" in TSQL?
    20 votes
    7 answers
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