大约有 47,000 项符合查询结果（耗时：0.0503秒） [XML]
Is volatile expensive?
...
If you look at the 2 references to getstatic, the first involves a load from memory, the second skips the load as the value is reused from the register(s) it is already loaded into (long is 64 bit and on my 32 bit laptop it uses 2 registers).
If we make the l variable volatile the resulting asse...
Difference between onCreate() and onStart()? [duplicate]
...lled when activity created and onStart() method called when activity comes from onPause() or onResume() .
– Rehan Sarwar
Jul 27 '17 at 5:49
add a comment
|...
What is the difference between D3 and jQuery?
... web app plugins.
Both are JavaScript DOM manipulation libraries, have CSS selectors and fluent API and are based on web standards which makes them look similar.
Following code is an example of D3 usage which is not possible with jQuery (try it in jsfiddle):
// create selection
var selection ...
Excluding directory when creating a .tar.gz file
...
I get tar: Error exit delayed from previous errors. in macos
– prayagupd
Jun 28 '18 at 23:32
...
How to change options of with jQuery?
Suppose a list of options is available, how do you update the <select> with new <option> s?
9 Answers
...
SQL Server Linked Server Example Query
...a Linked Server in SSMS Object Explorer, right-click, and Script Table as, SELECT To, and New Query Editor Window. The resulting SELECT statement will include the correct, fully-qualified path to the table. I had a mystery database qualifier in working with Sybase and this gave me the correct name.
...
What is difference between Errors and Exceptions? [duplicate]
...on classes are checked exceptions.
Checked exceptions are generally those from which a program can recover & it might be a good idea to recover from such exceptions programmatically. Examples include FileNotFoundException, ParseException, etc. A programmer is expected to check for these excepti...
How can I convert bigint (UNIX timestamp) to datetime in SQL Server?
...
SET @AdjustedLocalDatetime = @Datetime - @LocalTimeOffset
RETURN (SELECT DATEADD(second,@AdjustedLocalDatetime, CAST('1970-01-01 00:00:00' AS datetime)))
END;
GO
share
|
improve this answe...
What do I need to do to get Internet Explorer 8 to accept a self signed certificate?
... certificate.”, choose “Continue to this website (not recommended).”
Select Tools➞Internet Options.
Select Security➞Trusted sites➞Sites.
Confirm the URL matches, and click “Add” then “Close”.
Close the “Internet Options” dialog box with either “OK” or “Cancel”.
Refres...
How to export query result to csv in Oracle SQL Developer?
...worksheet toolbar)
That's it.
Method 2
Run a query
Right click and select unload.
Update. In Sql Developer Version 3.0.04 unload has been changed to export
Thanks to Janis Peisenieks for pointing this out
Revised screen shot for SQL Developer Version 3.0.04
From the format drop down...