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How can I select rows with most recent timestamp for each key value?
I have a table of sensor data. Each row has a sensor id, a timestamp, and other fields. I want to select a single row with latest timestamp for each sensor, including some of the other fields.
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SQL server query to get the list of columns in a table along with Data types, NOT NULL, and PRIMARY
...replace YourTableName with your actual table name - works for SQL Server 2005 and up.
In case you are using schemas, replace YourTableName by YourSchemaName.YourTableName where YourSchemaName is the actual schema name and YourTableName is the actual table name.
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How to save the output of a console.log(object) to a file?
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console.save = function(data, filename){
if(!data) {
console.error('Console.save: No data')
return;
}
if(!filename) filename = 'console.json'
if(typeof data === "object"){
data = JSON.stringify(data, undefined, 4)
}
var blob = new Blob([data], {ty...
How to avoid “too many parameters” problem in API design?
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How to make Regular expression into non-greedy?
...regex into my work and result is : invalid quantifier +\]) [Break on this error] var filterdata = takedata.match(/(\[[^\]]++\])/);\n (firebugs + Firefox) something wrong ?
– Rueta
May 13 '10 at 4:08
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Is there a zip-like function that pads to longest length in Python?
Is there a built-in function that works like zip() but that will pad the results so that the length of the resultant list is the length of the longest input rather than the shortest input?
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How to call a shell script from python code?
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This gives: OSError: [Errno 13] Permission denied. my script does not required to run with sudo. @Manoj Govindan
– alper
Apr 19 '17 at 12:04
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Is bool a native C type?
...p;boolArray[123]).
– Dai
Apr 5 at 0:05
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Take the content of a list and append it to another list
I am trying to understand if it makes sense to take the content of a list and append it to another list.
7 Answers
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What are queues in jQuery?
I found the jQuery.com document on queue() / dequeue() is too simple to understand. What exactly are queues in jQuery? How should I use them?
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