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MySQL “WITH” clause

...BM DB2 UDB 8 and later: http://publib.boulder.ibm.com/infocenter/db2luw/v8/index.jsp?topic=/com.ibm.db2.udb.doc/admin/r0000879.htm PostgreSQL 8.4 and later: https://www.postgresql.org/docs/current/static/queries-with.html Sybase 11 and later: http://dcx.sybase.com/1100/en/dbusage_en11/commontblexpr-...
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Hash and salt passwords in C#

...thSaltBytes); } The salt generation is as the example in the question. You can convert text to byte arrays using Encoding.UTF8.GetBytes(string). If you must convert a hash to its string representation you can use Convert.ToBase64String and Convert.FromBase64String to convert it back. ...
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Get next / previous element using JavaScript?

... So basically with selectionDiv iterate through the collection to find its index, and then obviously -1 = previous +1 = next within bounds for(var i = 0; i < divs.length;i++) { if(divs[i] == selectionDiv) { var previous = divs[i - 1]; var next = divs[i + 1]; } } Please be aw...
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How to write a simple database engine [closed]

...row header and a column header by specifying size of row and some internal indexing number to speed up your search, and at the start of each column to have the length of this column like "Adam", 1, 11.1, "123 ABC Street POBox 456" you can have it like <&RowHeader, 1><&Col1,CHR, 4&gt...
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Android phone orientation overview including compass

... Have a look at this: Stackoverflow.com: Q.5202147 You seem to be mostly right until the 3 diagrams A,B,C. After that you have got yourself confused. share | impro...
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How to replace local branch with remote branch entirely in Git?

... same revision as origin/master, and --hard will sync this change into the index and workspace as well. share | improve this answer | follow | ...
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How can I solve a connection pool problem between ASP.NET and SQL Server?

...me to time on our web site as well. The culprit in our case, is our stats/indexes getting out of date. This causes a previously fast running query to (eventually) become slow and time out. Try updating statistics and/or rebuilding the indexes on the tables affected by the query and see if that he...
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Using “super” in C++

...discussed in D&E. This is the first (look up "Michael Tiemann" in the index to find the story), the two week rule is the second (look up "two week rule" in the index), and the third was named parameters (look up "named arguments" in the index). – Max Lybbert ...
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Storing JSON in database vs. having a new column for each key

...rmant JSON types that can store arbitrary documents, including support for indexing specific keys of the JSON object. However, I still stand by my original statement that your default preference, when using a relational database, should still be column-per-value. Relational databases are still buil...
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Why is setTimeout(fn, 0) sometimes useful?

...lected <option> , because sometimes the <select> 's selectedIndex value would be out of sync with the selected <option> 's index attribute, as below: ...