大约有 42,000 项符合查询结果（耗时：0.0382秒） [XML]
Are there any side effects of returning from inside a using() statement?
...nCreated descending
where t.Id == singleId
select t).SingleOrDefault();
}
}
Indeed, I might even be tempted to use dot notation, and put the Where condition within the SingleOrDefault:
public static Transaction GetMostRecentTransaction(int singleId)
{
using...
how to use sed, awk, or gawk to print only what is matched?
...
If you want to select lines then strip out the bits you don't want:
egrep 'abc[0-9]+xyz' inputFile | sed -e 's/^.*abc//' -e 's/xyz.*$//'
It basically selects the lines you want with egrep and then uses sed to strip off the bits before an...
SQL Server database backup restore on lower version
...te a script for all objects and use the script to generate database.
select "Schema and Data" - if you want to Take both the
things in to the Backup script file select Schema Only -
if only schema is needed.
Yes, now you have done with the Create Script with Schema and Data of the...
Android 4.3 Bluetooth Low Energy unstable
... I have a work around for being unable to unpair. 1) go to your bt menu, select unpair, remove the ble device from the area or depower it, select the ble device in the bt menu and it'll try to pair and fail, then reset bluetooth. Upon reset the device will be unpaired.
– Chr...
SSRS chart does not show all labels on Horizontal axis
...your groups in a particular order, you need to specify it in the report:
Select the chart,
In the Chart Data popup window (where you specify the Category Groups), right-click your Group and click Category Group Properties,
Click on the Sorting option to see a control to set the Sort order
For th...
SQLite table constraint - unique on multiple columns
...Some other title');
sqlite> .mode col
sqlite> .headers on
sqlite> select * from t1;
id a b
---------- ---------- ----------------
1 Alice Some other title
2 Bob Palindromic guy
3 Charles chucky cheese
sq...
How do I get the entity that represents the current user in Symfony2?
...regular dql like
$em = $this->get('doctrine.orm.entity_manager');
"SELECT u FROM Acme\AuctionBundle\Entity\User u where u.username=".$username;
$q=$em->createQuery($query);
$user=$q->getResult();
the $user should now hold the user with this username ( you could also use other fields ...
How can I write a regex which matches non greedy? [duplicate]
...
The non-greedy ? works perfectly fine. It's just that you need to select dot matches all option in the regex engines (regexpal, the engine you used, also has this option) you are testing with. This is because, regex engines generally don't match line breaks when you use .. You need to tell ...
How to query nested objects?
...ndividual fields in the subdocument:
Equality matches within subdocuments select documents if the subdocument matches exactly the specified subdocument, including the field order.
In the following example, the query matches all documents where the value of the field producer is a subdocument tha...
Using Excel OleDb to get sheet names IN SHEET ORDER
...nzip
ZipArchive archive = new ZipArchive(data);
//select the correct file from the archive
ZipArchiveEntry appxmlFile = archive.Entries.SingleOrDefault(e => e.FullName == "docProps/app.xml");
//read the xml
XDocument xdoc = XDocument.L...