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Why do I need Transaction in Hibernate for read-only operations?

... You might actually have reasons to mark transactions as read-only. Transactions for reading might look indeed strange and often people don't mark methods for transactions in this case. But JDBC will create transaction anyway, it's just it will be working ...
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Is JavaScript supported in an email message?

...otes, Mozilla Thunderbird, Outlook Express, and Windows Live Mail all seem to have supported some sort of JavaScript execution. Nothing else does. It seems like a bad idea security-wise, so I would expect this to be a feature that won't always be around, even in these clients. ...
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How do I view the SQLite database on an Android device? [duplicate]

I have a set of data in an SQLite database. I need to view the database on a device. How do I do that? 19 Answers ...
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Why is [1,2] + [3,4] = “1,23,4” in JavaScript?

I wanted to add the elements of an array into another, so I tried this: 13 Answers 13 ...
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How to add a separator to a WinForms ContextMenu?

... This is one of many poorly documented items in Windows. I needed to do this a few months ago. I remembered that I could do it in Win32, but couldn't remember the syntax. I ended up pulling up some old VC++ 6 files to find it. By the way, I still occasionally refer to "The Petzold Book" ...
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How do I remove a submodule?

... Since git1.8.3 (April 22d, 2013): There was no Porcelain way to say "I no longer am interested in this submodule", once you express your interest in a submodule with "submodule init". "submodule deinit" is the way to do so. The deletion process also uses git rm (since git1.8.5 Oct...
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Redirecting to URL in Flask

I'm new to Python and Flask and I'm trying to do the equivalent of Response.redirect as in C# - ie: redirect to a specific URL - how do I go about this? ...
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How to take MySQL database backup using MySQL Workbench?

How to take database backup using MySQL Workbench? Can we take backup in the following ways- 9 Answers ...
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Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio

...h a Postgresql backend. Periodically, I get this error message when trying to access the database, both from the CLI and from loading a page on the server: ...
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Concatenating null strings in Java [duplicate]

Why does the following work? I would expect a NullPointerException to be thrown. 5 Answers ...