大约有 32,000 项符合查询结果(耗时:0.0611秒) [XML]
Creating an index on a table variable
...e to disallow duplicate key values or default to non unique. If not unique then SQL Server silently adds a uniqueifier to any duplicate keys to make them unique.
Non clustered indexes can also be explicitly declared as unique. Otherwise for the non unique case SQL Server adds the row locator (clust...
SQL update from one Table to another based on a ID match
...r
ON Sales_Import.LeadID = RetrieveAccountNumber.LeadID
WHEN MATCHED THEN
UPDATE
SET AccountNumber = RetrieveAccountNumber.AccountNumber;
Unfortunately the choice of which to use may not come down purely to preferred style however. The implementation of MERGE in SQL Server has been...
CMake output/build directory
...matic cache file from the src directory:
cd src
rm CMakeCache.txt
cd ..
Then remove all the set() commands and do:
cd Compile
rm -rf *
cmake ../src
As long as you're outside of the source directory when running CMake, it will not modify the source directory unless your CMakeList explicitly tel...
Jenkins / Hudson environment variables
...nswer is out of date. You need to go to Configure Jenkins > And you can then click to add an Environment Variable key-value pair from there.
eg: export MYVAR=test would be MYVAR is the key, and test is the value.
share
...
How to check if variable is string with python 2 and 3 compatibility
...es like six, is:
try:
basestring
except NameError:
basestring = str
then, assuming you've been checking for strings in Python 2 in the most generic manner,
isinstance(s, basestring)
will now also work for Python 3+.
...
Format timedelta to string
... it like this ConvertDuration=datetime.timedelta(milliseconds=int(254459)) then you just use split to get the microseconds out of play. From 0:03:43.765000 I can get 0:03:43 by simply running TotalDuration=str(ConvertDuration).split('.', 2)[0]
– DarkXDroid
Fe...
HTML input file selection event not firing upon selecting the same file
... I tried the demo, but (using Chrome 21) I keep getting `C:\fakepath` + then the filename I selected (excluding the path). The alert is show on every select of the same file though.
– Jasper de Vries
Aug 24 '12 at 15:16
...
Perform .join on value in array of objects
... But of course you could define a single function outside of the array and then assign this function to the toString method of all items, using a for-loop. Or you could use this approach when dealing with constructor functions, by adding one toString method to the prototype property for the construc...
Why is there extra padding at the top of my UITableView with style UITableViewStyleGrouped in iOS7
...s embedded, but on the view controller which contained the container view. Then it worked.
– Andy Mortimer
Nov 14 '15 at 12:22
|
show 17 mor...
Database design for audit logging
...of complete records, not just listings of fields that were edited that you then have to mash up to give the user an idea of what the old record looked like.
So for example, if you had a table called Opportunities to track sales deals, you would actually create two separate tables:
Opportunities
Op...
