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Warning: Null value is eliminated by an aggregate or other SET operation in Aqua Data Studio
I have a problem when data is null and the warning has appear when the result is display.
How to solve this problem?. How to change the null data to 0 when no data in the table?.
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Fast Linux File Count for a large number of files
I'm trying to figure out the best way to find the number of files in a particular directory when there are a very large number of files ( > 100,000).
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How to check if a line is blank using regex
I am trying to make simple regex that will check if a line is blank or not.
7 Answers
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Good Java graph algorithm library? [closed]
Has anyone had good experiences with any Java libraries for Graph algorithms. I've tried JGraph and found it ok, and there are a lot of different ones in google. Are there any that people are actually using successfully in production code or would recommend?
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Simple Pivot Table to Count Unique Values
This seems like a simple Pivot Table to learn with. I would like to do a count of unique values for a particular value I'm grouping on.
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To ternary or not to ternary? [closed]
I'm personally an advocate of the ternary operator: () ? : ; I do realize that it has its place, but I have come across many programmers that are completely against ever using it, and some that use it too often.
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How do I automatically update a timestamp in PostgreSQL
I want the code to be able to automatically update the time stamp when a new row is inserted as I can do in MySQL using CURRENT_TIMESTAMP.
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How to search for a string in cell array in MATLAB?
Let's say I have the cell array
8 Answers
8
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Swap key with value JSON
I have an extremely large JSON object structured like this:
16 Answers
16
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How to check if an email address exists without sending an email?
I have come across this PHP code to check email address using SMTP without sending an email .
14 Answers
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