大约有 18,500 项符合查询结果（耗时：0.0306秒） [XML]
Count with IF condition in MySQL query
...unt()
Try below:
SELECT
ccc_news . * ,
SUM(if(ccc_news_comments.id = 'approved', 1, 0)) AS comments
FROM
ccc_news
LEFT JOIN
ccc_news_comments
ON
ccc_news_comments.news_id = ccc_news.news_id
WHERE
`ccc_news`.`category` = 'news_layer2'
AND `ccc_news`.`sta...
How to define object in array in Mongoose schema correctly with 2d geo index
...erver always returns the "trk" field values as [Object]. Somehow I have no idea how this should work, as I tried at least all approaches which made sense to me ;-)
...
Render Partial View Using jQuery in ASP.NET MVC
...r has an action named details that does:
public ActionResult Details( int id )
{
var model = ...get user from db using id...
return PartialView( "UserDetails", model );
}
This is assuming that your partial view is a container with the id detailsDiv so that you just replace the entire thi...
Generate pdf from HTML in div using Javascript
...s
If you want to ignore certain elements, you have to mark them with an ID, which you can then ignore in a special element handler of jsPDF. Therefore your HTML should look like this:
<!DOCTYPE html>
<html>
<body>
<p id="ignorePDF">don't print this to pdf</p>
...
Add a column to existing table and uniquely number them on MS SQL Server
... this could be achieved as follows:
alter table Example
add NewColumn int identity(1,1)
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How to get the Full file path from URI
...
Use:
String path = yourAndroidURI.uri.getPath() // "/mnt/sdcard/FileName.mp3"
File file = new File(new URI(path));
or
String path = yourAndroidURI.uri.toString() // "file:///mnt/sdcard/FileName.mp3"
File file = new File(new URI(path));
...
Input text dialog Android
...like a good opportunity to use an AlertDialog.
As basic as it seems, Android does not have a built-in dialog to do this (as far as I know). Fortunately, it's just a little extra work on top of creating a standard AlertDialog. You simply need to create an EditText for the user to input data, and s...
SQL Server: Is it possible to insert into two tables at the same time?
...ata_Table and Link_Table . The link table just contains two columns, the identity of an object record and an identity of a data record.
...
Select row with most recent date per user
...
Query:
SQLFIDDLEExample
SELECT t1.*
FROM lms_attendance t1
WHERE t1.time = (SELECT MAX(t2.time)
FROM lms_attendance t2
WHERE t2.user = t1.user)
Result:
| ID | USER | TIME | IO |
-------------...
PostgreSQL - max number of parameters in “IN” clause?
...using Posgresql's JDBC driver 9.1.
This is a test of "delete from x where id in (... 100k values...)" with the postgresql jdbc driver:
Caused by: java.io.IOException: Tried to send an out-of-range integer as a 2-byte value: 100000
at org.postgresql.core.PGStream.SendInteger2(PGStream.java:201)...