大约有 30,000 项符合查询结果(耗时:0.0365秒) [XML]
Returning a value from thread?
How do I return a value from a thread?
17 Answers
17
...
Convert seconds to Hour:Minute:Second
I need to convert seconds to "Hour:Minute:Second".
27 Answers
27
...
Calculate MD5 checksum for a file
I'm using iTextSharp to read the text from a PDF file. However, there are times I cannot extract text, because the PDF file is only containing images. I download the same PDF files everyday, and I want to see if the PDF has been modified. If the text and modification date cannot be obtained, is a ...
How to print a query string with parameter values when using Hibernate
...hat you can copy the SQL straight to your DB front-end and execute as is.
http://log4jdbc.sourceforge.net/
https://code.google.com/p/log4jdbc-remix/
The latter also outputs a tabular representation of query results.
Sample Output showing generated SQL with params in place together with result se...
How to test if list element exists?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
When to use .First and when to use .FirstOrDefault with LINQ?
... you want only the first. Also it is ok for the result to be empty
From: http://www.technicaloverload.com/linq-single-vs-singleordefault-vs-first-vs-firstordefault/
share
|
improve this answer
...
How to use NULL or empty string in SQL
I would like to know how to use NULL and an empty string at the same time in a WHERE clause in SQL Server. I need to find records that have either null values or an empty string. Thanks.
...
Unnamed/anonymous namespaces vs. static functions
A feature of C++ is the ability to create unnamed (anonymous) namespaces, like so:
11 Answers
...
How do I UPDATE from a SELECT in SQL Server?
In SQL Server , it is possible to insert rows into a table with an INSERT.. SELECT statement:
35 Answers
...
How can I use Async with ForEach?
Is it possible to use Async when using ForEach? Below is the code I am trying:
7 Answers
...