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Call apply-like function on each row of dataframe with multiple arguments from each row
...mns. For each row in the dataframe, I want to call a function on the row, and the input of the function is using multiple columns from that row. For example, let's say I have this data and this testFunc which accepts two args:
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Check if SQL Connection is Open or Closed
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+1 exactly - use the SqlConnectionState enum as an enum and not turn it into a string.....
– marc_s
Aug 4 '11 at 15:19
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Transactions in .net
...should be used? What are the pitfalls to look out for etc. All that commit and rollback stuff. I'm just starting a project where I might need to do some transactions while inserting data into the DB. Any responses or links for even basic stuff about transactions are welcome.
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How to exit if a command failed?
I am a noob in shell-scripting. I want to print a message and exit my script if a command fails. I've tried:
8 Answers
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Connection timeout for SQL server
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Yes, you could append ;Connection Timeout=30 to your connection string and specify the value you wish.
The timeout value set in the Connection Timeout property is a time expressed in seconds. If this property isn't set, the timeout value for the connection is the default value (15 seconds).
Mo...
In where shall I use isset() and !empty()
...TRUE , therefore isset() is not an effective way to validate text inputs and text boxes from a HTML form.
17 Answers
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Is there an upside down caret character?
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There's ▲: ▲ and ▼: ▼
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Why am I getting “Unable to find manifest signing certificate in the certificate store” in my Excel
...eate one, head over to the Project's properties page, click on Signing tab and either
Click on Select from store
Click on Select from file
Click on Create test certificate
Once either of these is done, you should be able to build it again.
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How does the Brainfuck Hello World actually work?
Someone sent this to me and claimed it is a hello world in Brainfuck (and I hope so...)
6 Answers
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Using Panel or PlaceHolder
What is the difference between <asp:Panel > and <asp:PlaceHolder > in ASP.NET?
5 Answers
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