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How to get a reference to a module inside the module itself?
...
One more technique, which doesn't import the sys module, and arguably - depends on your taste - simpler:
current_module = __import__(__name__)
Be aware there is no import. Python imports each module only once.
...
What Java ORM do you prefer, and why? [closed]
...ay give jOOQ a try. You'll love it! :-)
Check out this example SQL:
// Select authors with books that are sold out
SELECT *
FROM T_AUTHOR a
WHERE EXISTS (SELECT 1
FROM T_BOOK
WHERE T_BOOK.STATUS = 'SOLD OUT'
AND T_BOOK.AUTHOR_ID ...
How to add external library in IntelliJ IDEA?
...ect top level, refresh/synchronize)
Expand libs and right click on the jar
Select "Add as Library"
Done
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Rails find record with zero has_many records associated [duplicate]
..._joins(:photos).where(photos: {id: nil})
which will result in SQL like:
SELECT cities.*
FROM cities LEFT OUTER JOIN photos ON photos.city_id = city.id
WHERE photos.id IS NULL
Using includes:
City.includes(:photos).where(photos: {id: nil})
will have the same result, but will result in much ug...
What's the fastest way to merge/join data.frames in R?
..., in fact, they are placed on tables which were overwritten before the sql select ever runs and that, in part, accounts for why its so slow. The idea of sqldf is that the data frames in your R session constitute the data base, not the tables in sqlite. Thus each time the code refers to an unqualif...
How to insert a value that contains an apostrophe (single quote)?
... 'O''Brien')
/\
right here
The same applies to SELECT queries:
SELECT First, Last FROM Person WHERE Last = 'O''Brien'
The apostrophe, or single quote, is a special character in SQL that specifies the beginning and end of string data. This means that to use it as part...
完美解决phpcms批量移动内容后，新闻心情、评论排行等不更新的问题 - 更多...
... if(!$_POST['tocatid']) showmessage(L('please_select_target_category'));
$tocatid = intval($_POST['tocatid']);
$modelid = $this->categorys[$tocatid]['modelid'];
if(!$modeli...
When is the finalize() method called in Java?
... be called on the main class if the main class creates a non-daemon thread and then returns?
– Tom G
Feb 15 '14 at 21:24
3
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Vsphere 6 集群上 安装 oracle rac 遇到的共享磁盘故障 - 数据库(内核) - ...
...AC_Deployment_Guide.pdf
最佳配置文档第17页
In the device list, select SCSI controller 1
In the SCSI Bus Sharing section, select None,keep the default selection.
In the SCSI Controller Type section, click Change Type.
Select VMware Paravirtual.
Click OK, and click OK again.
Add confi...
Cannot convert lambda expression to type 'string' because it is not a delegate type [duplicate]
...ID == Value
orderby q.RowID descending
select q).FirstOrDefault();
Errors:
Error 241 Cannot convert lambda expression to type 'string' because it is not a delegate type
Error 242 Delegate 'System.Func<..>' does not take 1 arguments
Error 243 The name 'Valu...