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Mar 8, 2017 · User kokos answered the wonderful Hidden Features of C# question by mentioning the using keyword. Can you elaborate on that? What are the uses of using? Nov 3, 2024 · A using namespace directive does not introduce any declarations that could conflict like this, but instead only makes all declarations in the named namespace visible to name lookup, if that. Nov 20, 2009 · Using the using keyword can be useful. Using using helps prevent problems using exceptions. Using using can help you use disposable objects more usefully. Using a different using. Updating the using keyword was specifically for templates, and (as was pointed out in the accepted answer) when you are working with non-templates using and typedef are mechanically identical, so. Yes Yes. Either way, when the using block is exited (either by successful completion or by error) it is closed. Although I think it would be better to organize like this because it's a lot easier to see what is.
SELECT * FROM tabela1 INNER JOIN tabela2 ON tabela1.cd_tabela1 = tabela2.cd_tabela1; e SELECT * FROM tabela1 INNER JOIN tabela2 USING(cd_tabela1); Qual a diferença entre os dois? Além do. In other word, if you know that the initialization of a variable in using may throw a particular exception, I wrap it with try-catch. Similarly, if within using body something may happen, which is not directly.
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