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Hello, JohnTB, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are a few links to pages you might find helpful:

Please remember to sign your messages on talk pages by typing four tildes (~~~~); this will automatically insert your username and the date. If you need help, check out Wikipedia:Questions, ask me on my talk page, or ask your question on this page and then place {{Help me}} before the question. Again, welcome! RJFJR (talk) 00:27, 29 May 2014 (UTC)Reply

May 2014

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Hello, and welcome to Wikipedia. This is a message letting you know that one or more of your recent edits to Two-phase locking has been undone by an automated computer program called ClueBot NG.