uncleflo
Registered since September 28th, 2017
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MySQL Table Locking
Saved by uncleflo on May 9th, 2018.
In this tutorial, you will learn how to use MySQL locking for cooperating table access between sessions. MySQL allows a client session to acquire a table lock explicitly for preventing other sessions from accessing the table during a specific period. A client session can acquire or release table locks only for itself. It cannot acquire or release table locks for other sessions. Before going into detail, we will create a sample database named sampledb that includes a simple table named tbl to practice the table locking statements.
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select without from
Saved by uncleflo on March 27th, 2018.
Let's get that straight from the beginning: select without from is not standard conforming SQL. Full stop. Nevertheless it works in many databases—also in standard conforming ones. That's no contradiction: the standard explicitly allows conforming databases to “provide user options to process non-conforming SQL statements”0. The behavior of such statements is completely up to the vendor, of course. So what alternative does the standard offer to select without from? A surprisingly simple and yet powerful one: values without insert.
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Lady Chatterley's Lover (Wordsworth Classics): Amazon.co.uk: D.H. Lawrence, David Ellis, Dr Keith Carabine: 9781840224887: Books
Saved by uncleflo on September 1st, 2016.
With its four-letter words and its explicit descriptions of sexual intercourse, Lady Chatterley's Lover is the novel with which D.H. Lawrence is most often associated. First published privately in Florence in 1928, it only became a world-wide best-seller after Penguin Books had successfully resisted an attempt by the British Director of Public Prosecutions to prevent them offering an unexpurgated edition. The famous 'Lady Chatterley trial' heralded the sexual revolution of the coming decades and signalled the defeat of Establishment prudery.
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