大约有 30,000 项符合查询结果（耗时：0.0481秒） [XML]
LEFT OUTER joins in Rails 3
... a named association, it will perform an INNER JOIN. You'll have to pass a string representing your LEFT OUTER JOIN.
From the documentation:
:joins - Either an SQL fragment for additional joins like "LEFT JOIN
comments ON comments.post_id = id" (rarely needed), named associations
in the sam...
Java: Getting a substring from a string starting after a particular character
I have a string:
9 Answers
9
...
How do I find the authoritative name-server for a domain name?
...er:
NS51.DOMAINCONTROL.COM
NS52.DOMAINCONTROL.COM
As for the extra credit: Yes, it is possible.
aryeh is definitely wrong, as his suggestion usually will only give you the IP address for the hostname. If you use dig, you have to look for NS records, like so:
dig ns stackoverflow.co...
Wildcards in a Windows hosts file
...ntries to the hosts file, because (as previously said), it's not that much extra work when you already are editing the apache config file.
share
|
improve this answer
|
follo...
Placeholder in UITextView
...HolderTextView : UITextView
@property (nonatomic, retain) IBInspectable NSString *placeholder;
@property (nonatomic, retain) IBInspectable UIColor *placeholderColor;
-(void)textChanged:(NSNotification*)notification;
@end
UIPlaceHolderTextView.m:
#import "UIPlaceHolderTextView.h"
@interface UI...
Cross-thread operation not valid: Control 'textBox1' accessed from a thread other than the thread it
...port1_DataReceived method, use this pattern:
delegate void SetTextCallback(string text);
private void SetText(string text)
{
// InvokeRequired required compares the thread ID of the
// calling thread to the thread ID of the creating thread.
// If these threads are different, it returns true.
...
HTTP POST Returns Error: 417 “Expectation Failed.”
...
I think I picked up an extra 10 points for getting an answer accepted in a thread that Jon Skeet posted a solution into.
– xcud
Feb 20 '09 at 5:39
...
Python __str__ and lists
In Java, if I call List.toString(), it will automatically call the toString() method on each object inside the List. For example, if my list contains objects o1, o2, and o3, list.toString() would look something like this:
...
JS strings “+” vs concat method [duplicate]
I have some experience with Java and I know that strings concatenation with "+" operator produces new object.
5 Answers
...
How to map calculated properties with JPA and Hibernate
...ect DATEDIFF(expiry_date,issue_date) from document_storage)")
private String myColumn;
the errors i get when i run and display my view even before trying to display the column on mustache is something like this
java.lang.NullPointerException
at java.base/java.lang.String$CaseInsensitiv...