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In Python, how do you convert a `datetime` object to seconds?
... non-POSIX epochs. All systems where python works use the same Epoch: 1970-01-01 00:00:00 UTC
– jfs
Jul 10 '15 at 20:24
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CHECK constraint in MySQL is not working
...y developer: Fixed in 8.0.15.
Previously, MySQL permitted a limited form of CHECK constraint syntax,
but parsed and ignored it. MySQL now implements the core features of
table and column CHECK constraints, for all storage engines.
Constraints are defined using CREATE TABLE and ALTER TAB...
Best way to do nested case statement logic in SQL Server
...tment:
--Nested Case Complex Expression
select datediff(dd,Invdate,'2009/01/31')+1 as DaysOld,
case when datediff(dd,Invdate,'2009/01/31')+1 >150 then 6 else
case when datediff(dd,Invdate,'2009/01/31')+1 >120 then 5 else
case when datediff(dd,Invdate,'2009/01/31')+1...
Preferred way to create a Scala list
... you use them, then a ListBuffer is most likely a preferable choice, if performance is critical.
But, if you are not on a critical path and the input is low enough, you can always reverse the list later, or just foldRight, or reverse the input, which is linear-time.
What you DON'T do is use a List...
How to vertically align a html radio button to it's label?
I have a form with radio buttons that are on the same line as their labels. The radio buttons are however not aligned vertically with their labels as shown in the screenshot below.
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AngularJS ngClass conditional
... third attempt.
Just to complement: You can also use logical operators to form logical expressions like
ng-class="{'test': obj.value1 == 'someothervalue' || obj.value2 == 'somethingelse'}"
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What's the role of adapters in Android?
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This is the same information that I can get from documentation. But I want a detailed explanation
– Robin
Sep 9 '10 at 14:12
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Displaying Windows command prompt output and redirecting it to a file
...is executed even if dir command failed. This is useful when there was some form of error in your command and you still want to see the log file on the console. See Microsoft's article on this. However, this has the issue of %errorlevel% being set to the error level of type (which would be 0).
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Why can't I do ?
...ly a disturbance. You CAN upload user files to the server with AJAX from a form with <input type=file> field, but if you want to be nice to the user and show a preview, you HAVE to do the round trip and upload the file to the server first. How is it more secure than generating the preview imag...
How to display the function, procedure, triggers source code in postgresql?
...-------------
26599 | tbl_tmp
(1 row)
step 3: list the table information
skytf=> \d tbl_tmp
It will show you the details of the trigger of the table . Usually a trigger uses a function. So you can get the source code of the trigger function just as the above that I pointed ...