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java.sql.SQLException: - ORA-01000: maximum open cursors exceeded

...not used it) is log4jdbc. You then need to do some simple analysis on this file to see which executes don't have a corresponding close. Counting the open and closes should highlight if there is a potential problem Monitoring the database. Monitor your running application using the tools such as th...
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How are people unit testing with Entity Framework 6, should you bother?

...rk into the Test Project. 2- Put the connection string into the app.config file of Test Project. 3- Reference the dll System.Transactions in Test Project. The unique side effect is that identity seed will increment when trying to insert, even when the transaction is aborted. But since the tests are...
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How are virtual functions and vtable implemented?

... @curiousguy: I'd file that under “the above is simplified in many ways”, particularly since the main application of virtual bases is multiple inheritance, which I didn't model either. But thanks for the comment, it's useful to have this h...
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Why isn't String.Empty a constant?

... here in the Shared Source Common Language Infrastructure 2.0 Release. The file to look at is sscli20\clr\src\bcl\system\string.cs. The Empty constant holds the empty string value. We need to call the String constructor so that the compiler doesn't mark this as a literal. Marking th...
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The Use of Multiple JFrames: Good or Bad Practice? [closed]

...ort as a PDF to a specific directory, using Acrobat Reader to open the PDF file, and then they would do the same with the next report. They would have multiple Acrobat Readers running with the various report outputs that they wanted to look at. So I relented and made the viewer modeless. This means...
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Why does Python code run faster in a function?

... technical detail about this optimization, here's a quote from the ceval.c file (the "engine" of Python's virtual machine): Some opcodes tend to come in pairs thus making it possible to predict the second code when the first is run. For example, GET_ITER is often followed by FOR_ITER. And...
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How to add a search box with icon to the navbar in Bootstrap 3?

...gt; <!-- WARNING: Respond.js doesn't work if you view the page via file:// --> <!--[if lt IE 9]> <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script> <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.m...
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How do I migrate a model out of one django app and into a new one?

... 0003_create_cat.py `-- models.py Now we need to edit both migration files: #0003_create_cat: replace existing forward and backward code #to use just one sentence: def forwards(self, orm): db.rename_table('common_cat', 'specific_cat') if not db.dry_run: # For permissions to...
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Difference between Mock / Stub / Spy in Spock test framework

...ass which would otherwise use external resources like network connections, files or databases or maybe use dozens of other objects. The advantage of mocks is that you can isolate the class under test from the rest of the system. A stub is also a dummy class providing some more specific, prepared or...
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Why Does OAuth v2 Have Both Access and Refresh Tokens?

...igates the risk of a long-lived access_token leaking (query param in a log file on an insecure resource server, beta or poorly coded resource server app, JS SDK client on a non https site that puts the access_token in a cookie, etc) ...