大约有 44,000 项符合查询结果（耗时：0.0436秒） [XML]
COUNT DISTINCT with CONDITIONS
...t the number of distinct items in a column subject to a certain condition, for example if the table is like this:
5 Answers...
Unioning two tables with different number of columns
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Add extra columns as null for the table having less columns like
Select Col1, Col2, Col3, Col4, Col5 from Table1
Union
Select Col1, Col2, Col3, Null as Col4, Null as Col5 from Table2
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How to use getJSON, sending data with post method?
...ld be anything you want, although if are sending the contents of a an html form, you can use the serialize method to create the data for the POST from your form.
var dataToBeSent = $("form").serialize();
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What is the difference between JOIN and JOIN FETCH when using JPA and Hibernate
... the difference is: in the first query you are returning only the Employes for the Hibernate. In the second query, you are returning the Employes and all Departments associated.
So, if you use the second query, you will not need to do a new query to hit the database again to see the Departments of...
How to parse/format dates with LocalDateTime? (Java 8)
Java 8 added a new java.time API for working with dates and times ( JSR 310 ).
7 Answers
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Horizontal ListView in Android?
...r, ViewHolder pattern is
automatically implemented
Animation is easy to perform
Many more features
More Information about RecyclerView:
grokkingandroid.com
antonioleiva.com
Sample:
survivingwithandroid.com
Just add the below block to make the ListView to horizontal from vertical
Code-snippe...
Is there any good dynamic SQL builder library in Java? [closed]
Anyone knows some good SQL builder library for Java like Squiggle (not maintained anymore it seems). Preferably, a project in active development.
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Elegant setup of Python logging in Django
...rse add handlers to any other loggers too, but there isn't commonly a need for this in my experience.
In each module, I define a logger using
logger = logging.getLogger(__name__)
and use that for logging events in the module (and, if I want to differentiate further) use a logger which is a child...
How to center canvas in html5
I've been searching for a solution for a while now, but haven't found anything. Maybe it's just my search terms.
Well, I'm trying to make the canvas center according to the size of the browser window. The canvas is 800x600.
And if the window gets below 800x600, it should resize as well(but that's no...
Access string.xml Resource File from Java Android Code
...rray using
String arr[] = getResources().getStringArray(R.array.planet);
for (int i = 0; i < arr.length; i++) {
Toast.makeText(getBaseContext(),arr[i], Toast.LENGTH_LONG).show();
}
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