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How to reset sequence in postgres and fill id column with new data?
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If you don't want to retain the ordering of ids, then you can
ALTER SEQUENCE seq RESTART WITH 1;
UPDATE t SET idcolumn=nextval('seq');
I doubt there's an easy way to do that in the order of your choice without recreating the whole table.
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Alternatives to gprof [closed]
...ction call is 1 instruction, so something that locates costly calls is 2-3 orders of magnitude more precise.)
that the call graph is important.
What you need to know about a program is not where it spends its time, but why. When it is spending time in a function, every line of code on the stack give...
Proper way to wait for one function to finish before continuing?
...e.
The function I created will be completed after 2s. I used
setTimeout in order to demonstrate the situation where the
instructions would take some time to execute.
For the second function, you can use
async/await
function where you will await for the first function to complete
before proceeding wi...
How to override the copy/deepcopy operations for a Python object?
...The copy module does
not use the copy_reg registration
module.
In order for a class to define its own
copy implementation, it can define
special methods __copy__() and
__deepcopy__(). The former is called to implement the shallow copy
operation; no additional arguments are
passed....
How do I auto-submit an upload form when a file is selected?
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JavaScript with onchange event:
<form action="upload.php" method="post" enctype="multipart/form-data">
<input type="file" name="filename" onchange="javascript:this.form.submit();">
</form>
jQuery
.change() and .submit():
$('#fileInput').change(...
得合伙人者得天下：腾讯五虎、新东方三驾马车、携程四君子、复旦五虎 - 资...
...不记仇，相对在外面萍水相逢的，遇到争执的话很容易出问题。”
新东方三驾马车：真实版“中国合伙人”
学校：北京大学
创业者：俞敏洪、徐小平、王强
新东方昔日“三驾马车”中，俞敏洪和王强1980年一同考进北京大...
Html code as IFRAME source rather than a URL
... For anyone like me who was looking how to encode HTML this way with php, you want rawurlencode (php.net/manual/en/function.rawurlencode.php)
– Braiba
Dec 2 '15 at 13:27
4
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List directory in Go
...ts of a directory and speed is of essence, note that using Readdirnames is orders of magnitude faster (around 20x faster for me)
– SquattingSlavInTracksuit
Oct 14 '19 at 12:41
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Difference between __getattr__ vs __getattribute__
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"In order to avoid infinite recursion in this method, its implementation should always call the base class method with the same name to access any attributes it needs, for example, object.__getattribute__(self, name)."
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Remove the last character from a string [duplicate]
...the rest of the unaltered string is concatenated.
– CPHPython
Aug 9 '18 at 10:03
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