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How to get parameters from the URL with JSP
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In a GET request, the request parameters are taken from the query string (the data following the question mark on the URL). For example, the URL http://hostname.com?p1=v1&p2=v2 contains two request parameters - - p1 and p2. In a POST request, the request parameters are taken from both q...
How do I use su to execute the rest of the bash script as that user?
I've written a script that takes, as an argument, a string that is a concatenation of a username and a project. The script is supposed to switch (su) to the username, cd to a specific directory based upon the project string.
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How is the Linux kernel tested ?
...s changes.
There tend not to be much in the way of formal test plans, but extra testing may be asked for before features are merged into upstream trees.
As Dean pointed out, there's also some automated testing, the linux test project and the kernel autotest (good overview).
Developers will often ...
How to access parent Iframe from JavaScript
...ntents of an iframe too small. But why does it work? window.name returns a string. What's different about using window.name than just passing the id name as a string which doesn't work.)?
– Karl
Oct 2 '16 at 20:24
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What's the difference between JPA and Hibernate? [closed]
...rt for multitenancy
support for soft delete (e.g. @Where, @Filter)
These extra features allow Hibernate to address many persistence requirements demanded by large enterprise applications.
share
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C# DropDownList with a Dictionary as DataSource
...eField of DropDownList using "Key" and "Value" texts :
Dictionary<string, string> list = new Dictionary<string, string>();
list.Add("item 1", "Item 1");
list.Add("item 2", "Item 2");
list.Add("item 3", "Item 3");
list.Add("item 4", "Item 4");
ddl.DataSource = l...
NAnt or MSBuild, which one to choose and when?
...sbuild.exe. So we were screwed back then. Since 2.0, msbuild.exe and the extra libraries do alot. And writing a custom MsBuild-Task has a learning curve, but I've written about 10 of them over the years.
– granadaCoder
Jun 27 '14 at 16:48
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How do I modify fields inside the new PostgreSQL JSON datatype?
..._build_object('<key>', '<value>')
Where <key> should be string, and <value> can be whatever type to_jsonb() accepts.
For setting a value deep in a JSON hierarchy, the jsonb_set() function can be used:
SELECT jsonb_set('{"a":[null,{"b":[]}]}', '{a,1,b,0}', jsonb '{"c":3}')
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How can I shuffle the lines of a text file on the Unix command line or in a shell script?
... stdin input, but alternatively also filename arguments
The functions take extra steps to handle SIGPIPE in the usual way (quiet termination with exit code 141), as opposed to breaking noisily. This is important when piping the function output to a pipe that is closed early, such as when piping to h...
How do you use variables in a simple PostgreSQL script?
...on't work for me. Using squirrel. Error: ERROR: unterminated dollar-quoted string at or near "$$
– Oliver Watkins
Apr 5 '18 at 9:04
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