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PostgreSQL: How to pass parameters from command line?
...command line (outside the script). I want to avoid going in and replacing all the ? with actual values, instead I'd like to pass the arguments after the query.
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Reading specific lines only
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with linecache.getlin('some_file', 4) I get the 4th line, not the 5th.
– Juan
Dec 11 '14 at 18:14
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Find region from within an EC2 instance
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If this is in a bootscript, the metadata service may not be instantiated yet - if so, wait and try again. I've seen it take 10-15 seconds after boot for the metadata location to become available.
– vacri
Mar 27 '18 at 3:46
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Quickly reading very large tables as dataframes
... MonetDB.R gives you a data type that pretends to be a data frame but is really a MonetDB underneath, increasing performance. Import data with its monetdb.read.csv function. dplyr allows you to work directly with data stored in several types of database.
Storing data in binary formats can also be...
How can I create directories recursively? [duplicate]
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Specifically: os.makedirs(os.path.join("/home/dail", "first", "second", "third"))
– mseery
May 14 '11 at 22:41
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How to get a Static property with Reflection
...so the key for me was to use the .FlattenHierarchy BindingFlag. I don't really know why I just added it on a hunch and it started working. So the final solution that allows me to get Public Instance or Static Properties is:
obj.GetType.GetProperty(propName, Reflection.BindingFlags.Public _
Or R...
How do you list all triggers in a MySQL database?
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iOS (iPhone, iPad, iPodTouch) view real-time console log terminal
... run idevicesys without sudo, I get a cryptic error about "Could not start service com.apple.syslog_relay". Maybe it depends on how you install it or something.
– Bjorn Roche
Nov 10 '16 at 15:34
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The specified named connection is either not found in the configuration, not intended to be used wit
... If you are using WCF, remember to include the connection string in your service project
– Nathan
Oct 3 '12 at 2:54
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How do I create a file and write to it in Java?
...te that each of the code samples below may throw IOException. Try/catch/finally blocks have been omitted for brevity. See this tutorial for information about exception handling.
Note that each of the code samples below will overwrite the file if it already exists
Creating a text file:
PrintWriter...