大约有 30,000 项符合查询结果（耗时：0.0491秒） [XML]
PostgreSQL - fetch the row which has the Max value for a column
...
You have an error. You need to write ORDER BY tree_size.size DESC. Also, for author's task the code will look like this: SELECT usr_id, (array_agg(time_stamp ORDER BY time_stamp DESC))[1] AS timestamp, (array_agg(lives_remaining ORD...
Choosing Java vs Python on Google App Engine
...
Your app, it is throwing Internal Server Error.
– tomdemuyt
Apr 19 '12 at 18:54
1
...
How Should I Declare Foreign Key Relationships Using Code First Entity Framework (4.1) in MVC3?
...Customer Customer { get; set; }
EDIT based on Latest Code
You get that error because of this line:
[ForeignKey("Parent")]
public Patient Patient { get; set; }
EF will look for a property called Parent to use it as the Foreign Key enforcer. You can do 2 things:
1) Remove the ForeignKeyAttribu...
Values of disabled inputs will not be submitted
...ut.
– John Kugelman
Aug 31 '09 at 4:05
any info on which browser does and which doesn't obey ?
–...
What's the difference between Perl's backticks, system, and exec?
...onored. The collected standard output of the command is returned; standard error is unaffected.
Alternatives:
In more complex scenarios, where you want to fetch STDOUT, STDERR or the return code, you can use well known standard modules like IPC::Open2 and IPC::Open3.
Example:
use IPC::Open2;
...
T-SQL stored procedure that accepts multiple Id values
...s security implications.
Passing the List as Many Parameters. Tedious and error prone, but simple.
Really Slow Methods. Methods that uses charindex, patindex or LIKE.
I really can't recommend enough to read the article to learn about the tradeoffs among all these options.
...
Browser statistics on JavaScript disabled [closed]
...easons guessed to be things like corporate content filters, mobile network errors, and even page-preloading.
If we could find out what constitutes that 0.9% and how much is not a human sitting at an intentionally JS-disabled browser, then the effort and cost of investing in progressive enhancement/...
Is there a print_r or var_dump equivalent in Ruby / Ruby on Rails?
...t;> y User.first
--- !ruby/object:User
attributes:
created_at: 2009-05-24 20:16:11.099441
updated_at: 2009-05-26 22:46:29.501245
current_login_ip: 127.0.0.1
id: "1"
current_login_at: 2009-05-24 20:20:46.627254
login_count: "1"
last_login_ip:
last_login_at:
login: admin
attri...
How in node to split string by newline ('\n')?
... or mixed.
– qubyte
Nov 6 '16 at 10:05
Right. Or when it's "known" now but might change in the future.
...
How to convert milliseconds to “hh:mm:ss” format?
...not working, I simply test it by pass 100, 1000, 1200 and it responding as 05:30:00 , 05:30:01, 05:30:01.
– CoDe
Oct 24 '17 at 1:36
...