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Java Persistence / JPA: @Column vs @Basic

...ns give clues on how to map the pure theoretical model to a real database: Table, Column, ... In your question 'Basic' is an annotation to provide information about the relational entity attribute while 'Column' provides information on how to map it to a database column. – Brun...
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Difference between Statement and PreparedStatement

...tes and other special characters"; instead, it performs separation of executable SQL and data, sending the parameters to the DBMS as separate packets of information after the SQL has been converted into a query plan. – IMSoP Sep 13 '16 at 15:02 ...
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Which equals operator (== vs ===) should be used in JavaScript comparisons?

... between == and ===. Source: http://dorey.github.io/JavaScript-Equality-Table/ var1 === var2 When using === for JavaScript equality testing, everything is as is. Nothing gets converted before being evaluated. var1 == var2 When using == for JavaScript equality testing, some funk...
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How to Test a Concern in Rails

...p the database accordingly (because your dummy class won't have a database table backing it). Moreover, you'll want to not only test the concern but also test the concern's behavior inside your model specs. So why not kill two birds with one stone? By using RSpec's shared example groups, you can te...
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What is the proper way to use the node.js postgresql module?

...r' + err.stack); callback(err); } else { console.log('Connection established with pg db server'); client.query("select * from employee", (err, res) => { if (err) { console.error('Error executing query on pg db' + err.stack); callback(err);...
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What is so bad about singletons? [closed]

...The problem is (as I see it), that the things that Singleton brings to the table in these cases are irrelevant. (Construct-on-first-use is trivial to implement in a non-singleton, for example, even if it's not actually using the constructor to do it.) – dash-tom-bang ...
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Can I add a custom attribute to an HTML tag?

... There is a good table of different doctypes and corresponding browser modes here: hsivonen.fi/doctype/#handling. HTML5 doctype switches all post-2001 browsers into (Full) Standards mode. XHTML Transitional and HTML 4 Transitional (especially...
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Is Meyers' implementation of the Singleton pattern thread safe?

...d to as "Magic Statics" in the "C++11 Core Language Features: Concurrency" table here: msdn.microsoft.com/en-us/library/vstudio/hh567368.aspx – olen_garn Mar 27 '13 at 16:41 1 ...
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Is there a way for non-root processes to bind to “privileged” ports on Linux?

... as understand, you'd have to apply the capability to the interpreter executable itself, which of course is a security nightmare, since any program using that interpreter will have the capability. I wasn't able to find any clean, easy way to work around this problem. Linux will disable LD_LIBRARY_PA...
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Cross-reference (named anchor) in markdown

...ng to this: confluence.atlassian.com/bitbucket/…, bitbucket supports the Table of Contents extension which can auto-generate links and anchors based on the document headers. The TOC extension is documented here: pythonhosted.org/Markdown/extensions/toc.html Add the text "[TOC]" to the beginning ...