大约有 23,000 项符合查询结果（耗时：0.0332秒） [XML]
PL/SQL, how to escape single quote in a string?
...cularly useful when I have to create a number of insert/update statements based on a large amount of existing data.
Here's a very quick example:
Lets say we have a very simple table, Customers, that has 2 columns, FirstName and LastName. We need to move the data into Customers2, so we need to ...
Is it possible to await an event instead of another async method?
...iest answer is often TaskCompletionSource (or some async-enabled primitive based on TaskCompletionSource).
In this case, your need is quite simple, so you can just use TaskCompletionSource directly:
private TaskCompletionSource<object> continueClicked;
private async void Button_Click_1(obje...
SQL JOIN - WHERE clause vs. ON clause
... @JamesHutchison It's tough to make reliable performance generalizations based on observed behaviors like this. What was true one day tends to be wrong the next, because this is an implementation detail rather than documented behavior. Database teams are always looking for places to improve optimi...
Converting Symbols, Accent Letters to English Alphabet
...s before you even go onto consider the Cyrillic languages and other script based texts such as Arabic, which simply cannot be "converted" to English.
If you must, for whatever reason, convert characters, then the only sensible way to approach this it to firstly reduce the scope of the task at hand....
How can I copy the output of a command directly into my clipboard?
... doesn't work for command output tho - e.g. pbcopy < git merge-base master some-branch
– Ben
Sep 17 '14 at 21:29
...
Doing a cleanup action just before Node.js exits
...en a module that does all this, github.com/jtlapp/node-cleanup, originally based on the cleanup.js solution below, but greatly revised based on feedback. I hope it proves helpful.
– Joe Lapp
Dec 27 '16 at 5:45
...
What is the Objective-C equivalent for “toString()”, for use with NSLog?
...escription function, then just description will be called.
Note that the base class NSObject does have description implemented, but it is fairly bare-bones: it only displays the address of the object. This is why I recommend that you implement description in any class you want to get info out of, ...
in entity framework code first, how to use KeyAttribute on multiple columns
...ke me, you prefer to use a configuration file you can do that in this way (based on Manavi's example):
public class User
{
public int UserId { get; set; }
public string Username { get; set; }
}
public class UserConfiguration : EntityTypeConfiguration<User>
{
public UserConfigur...
Regex Email validation
... here: C# – Email Regular Expression
Also, this checks for RFC validity based on email syntax, not for whether the email really exists. The only way to test that an email really exists is to send and email and have the user verify they received the email by clicking a link or entering a token.
T...
In Java, how do I parse XML as a String instead of a file?
...
I have this function in my code base, this should work for you.
public static Document loadXMLFromString(String xml) throws Exception
{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocu...