大约有 31,400 项符合查询结果(耗时:0.0493秒) [XML]

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Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?

...ce them otherwise? If so, there's your answer. Do I have to use EJBs? Really? Avoid them if at all possible--they are really only needed for very large, enterprise-class systems. Remember that they are merely tools, and big ones at that (can anyone say "Golden Sledgehammer"?). They are heavily...
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Why is an int in OCaml only 31 bits?

... This is called a tagged pointer representation, and is a pretty common optimization trick used in many different interpreters, VMs and runtime systems for decades. Pretty much every Lisp implementation uses them, many Smalltalk VMs, m...
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What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?

... Are you sure that is all there is to it? I often find that the page loading hangs on a shebang URL on facebook (even after many reloads), but if you manually remove the #!, it works. Not to mention you often get "1.5 URLs" (i.e. the old URL remai...
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All combinations of a list of lists

I'm basically looking for a python version of Combination of List<List<int>> 7 Answers ...
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How to rename a table in SQL Server?

... And to add, don't accidentally put the schema in the 'NewName' field, otherwise your table might end up looking something like dbo.dbo.NewName. – Michael Plautz Jan 23 '17 at 21:12 ...
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Why are joins bad when considering scalability?

... Scalability is all about pre-computing (caching), spreading out, or paring down the repeated work to the bare essentials, in order to minimize resource use per work unit. To scale well, you don't do anything you don't need to in volume, and...
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Visual Studio 2010 annoyingly opens documents in wrong MDI pane

...ng the window layout and see if that fixes it. First, Window -> Close All Documents Then, Window -> Reset Window Layout Exit VS to be sure, then go back in. share | improve this answer ...
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Linux vi arrow keys broken in insert mode

... @pts - only on broken systems. Starting vim as vi on all of my boxes works just fine; however, there are some CentOS boxes I have used that demonstrate the behavior you are talking about. – Chas. Owens May 1 '09 at 22:22 ...
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Downloading MySQL dump from command line

..., then: $ mysqldump -u [uname] -p db_name > db_backup.sql If it's all DBs, then: $ mysqldump -u [uname] -p --all-databases > all_db_backup.sql If it's specific tables within a DB, then: $ mysqldump -u [uname] -p db_name table1 table2 > table_backup.sql You can even go as f...
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Differences between MySQL and SQL Server [closed]

I'm an ASP.NET developer who has used Microsoft SQL Server for all my database needs (both at work and for personal projects). ...