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update columns values with column of another table based on condition [duplicate]
... table1.Price = table2.price
FROM table1 INNER JOIN table2 ON table1.id = table2.id
You can also try this:
UPDATE table1
SET price=(SELECT price FROM table2 WHERE table1.id=table2.id);
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在MongoDB中模拟Auto Increment - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...代码大致如下所示：
<?php
function generate_auto_increment_id($namespace, array $option = array())
{
$option += array(
'init' => 1,
'step' => 1,
);
$instance = new Mongo();
$instance = $instance->selectCollection('_seq', 'seq');
$seq = ...
ng-model for `` (with directive DEMO)
I tried to use ng-model on input tag with type file:
12 Answers
12
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How to make a copy of a file in android?
In my app I want to save a copy of a certain file with a different name (which I get from user)
10 Answers
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How to get the path of a running JAR file?
My code runs inside a JAR file, say foo.jar , and I need to know, in the code, in which folder the running foo.jar is.
3...
Sort a list from another list IDs
I have a list with some identifiers like this:
4 Answers
4
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Where can I find my .emacs file for Emacs running on Windows?
I tried looking for the .emacs file for my Windows installation for Emacs, but I could not find it. Does it have the same filename under Windows as in Unix?
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Saving and loading objects and using pickle
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As for your second problem:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python31\lib\pickle.py", line
1365, in load encoding=encoding,
errors=errors).load() EOFError
After you have read the contents of the file, the file pointer will b...
git push fails: RPC failed; result=22, HTTP code = 411
... for Windows, the easiest way is using the integrated configuration.
In a file explorer press left mouse button, select TortoiseGit -> Settings. Accept the info message. Now, you can choose if you want to configure the property only for the current project or system whide. For systemwide configu...
Reverting a single file to a previous version in git [duplicate]
Is there a way to go through different commits on a file.
Say I modified a file 5 times and I want to go back to change 2, after I already committed and pushed to a repository.
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