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Add a column to a table, if it does not already exist
... sys.columns
WHERE object_id = OBJECT_ID(N'[dbo].[Person]')
AND name = 'ColumnName'
)
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How do I use sudo to redirect output to a location I don't have permission to write to?
I've been given sudo access on one of our development RedHat linux boxes, and I seem to find myself quite often needing to redirect output to a location I don't normally have write access to.
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Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...eal Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL> alter system set local_listener='(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.110.100)(PORT=1521))))' sid='PROD1';
System altered.
SQL> alter system set ...
How do I use Assert to verify that an exception has been thrown?
...message is treated as a string that needs to matcvh the exception message (and IU think that makes more sense)
– Ruben Bartelink
Jun 25 '09 at 10:48
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What is code coverage and how do YOU measure it?
What is code coverage and how do YOU measure it?
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Serialize an object to XML
...encapsulating the StringWriter, it is utilizing your passed-in StringWriterand has no expectation/responsibility to dispose of it. Further StringWriter is outside XmlWriter's scope, you may still want it when XmlWriter is disposed, it would be poor behavior for XmlWriter to dispose your StringWriter...
How do you serve a file for download with AngularJS or Javascript?
...omatically when the document is unloaded; however, for optimal performance and memory usage, if there are safe times when you can explicitly unload them, you should do so.
Source: MDN
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Checkout multiple git repos into same Jenkins workspace
Using Jenkins 1.501 and Jenkins Git plugin 1.1.26
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How to find encoding of a file via script on Linux?
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Sounds like you're looking for enca. It can guess and even convert between encodings. Just look at the man page.
Or, failing that, use file -i (linux) or file -I (osx). That will output MIME-type information for the file, which will also include the character-set encoding. ...
What's a concise way to check that environment variables are set in a Unix shell script?
...(an empty string) is OK — not exactly what you want, but the alternative and older notation.
The second variant (using :?) requires DEST to be set and non-empty.
If you supply no message, the shell provides a default message.
The ${var?} construct is portable back to Version 7 UNIX and the Bourne ...