大约有 48,000 项符合查询结果(耗时:0.0829秒) [XML]
Remove duplicates from a List in C#
....GroupBy(s => s.City)
.Select(grp => grp.FirstOrDefault())
.OrderBy(s => s.City)
.ToList();
I have these fields in my list: Id, StoreName, Cit...
How to delete from multiple tables in MySQL?
...nd filter on indices? 15k x 15k x 15k x 15k 15k x 15k is 11 million. Did a SELECT take similarly long?
– Paul Draper
May 22 '14 at 20:07
6
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Node.js Mongoose.js string to ObjectId function
...those who are attempting to do this, this is a much better answer than the selected answer because it will not transform the id if you are already using a mongo id.
– ed209
May 19 '15 at 13:34
...
How to list all functions in a Python module?
... expressions, and that could be a problem.
For example, I'm letting users select entry point functions for packages being made with zipapp. Using import and inspect risks running astray code, leading to crashes, help messages being printed out, GUI dialogs popping up and so on.
Instead I use the a...
How to create an AVD for Android 4.0
...t;Android Application or Android Tests -> Emulator (radio button) -> Select your newly created AVD
– Ted Spradley
Apr 13 '14 at 18:43
...
C/C++ check if one bit is set in, i.e. int variable
...
What the selected answer is doing is actually wrong. The below function will return the bit position or 0 depending on if the bit is actually enabled. This is not what the poster was asking for.
#define CHECK_BIT(var,pos) ((var) &...
Best way to synchronize local HTML5 DB (WebSQL Storage, SQLite) with a server (2 way sync) [closed]
...your DB. It works by storing all the SQL request applied to the DB (except select of course) , and sending them to the server. It's great to manage deletion, but it's a little heavy if you have a lot of updates, and the server need to use the same SQL language...
Another project from QuickConnect ...
How to add System.Windows.Interactivity to project?
...
Should be the selected answer as of 2019. Thanks for taking time to add this important update.
– mins
Sep 19 '19 at 16:59
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Need a good hex editor for Linux [closed]
...A data conversion table.
Advanced copy/paste capabilities.
Highlighting of selection pattern matches in the file.
Plugin based architecture.
Export of data to text and html (others with plugins).
Bitwise operations on data.
A comprehensive user manual.
wxHexEditor is another Free Hex Editor, built...
SQL Server Restore Error - Access is Denied
...ried to restore a 2005 .bak file, and i received exactly the same error. I selected the overwrite option as well to no avail.
my solution was to grant the SQL user access to the directory in question, by going to the folder and editing the access rights through the property screen.
...
