大约有 47,000 项符合查询结果（耗时：0.0464秒） [XML]
NullPointerException in Java with no StackTrace
...interException) occurs for the first time, the full stack trace is printed and the JVM remembers the stack trace (or maybe just the location of the code). When that exception occurs often enough, the stack trace is not printed anymore, both to achieve better performance and not to flood the log with...
Automatically create an Enum based on values in a database lookup table?
... | 2 | Yellow |
----------------------------------
Construct a select to get the values you need:
select * from enums e inner join enum_values ev on ev.enums_id=e.id where e.id=0
Construct the source code for the enum and you'll get something like:
String enumSourceCode = "enum " + e...
Repair all tables in one go
...ing query to print REPAIR SQL statments for all tables inside a database:
select concat('REPAIR TABLE ', table_name, ';') from information_schema.tables
where table_schema='mydatabase';
After that copy all the queries and execute it on mydatabase.
Note: replace mydatabase with desired DB name
...
How to solve “The specified service has been marked for deletion” error
...ing state. The following procedure worked for me:
open task manager > select services tab > select the service > right click and select "go to process" > right click on the process and select End process
Service should be gone after that
...
Using Build Flavors - Structuring source folders and build.gradle correctly
...r code in src/main/java can do
import com.foo.A
depending on the flavor selected, the right version of com.foo.A is used.
This also means both version of A must have the same API (at least when it comes to the API used by classes in src/main/java/...
Edit to match revised question
Additionally...
Setting up FTP on Amazon Cloud Server [closed]
...TP ports on your EC2 server. Log in to the AWS EC2 Management Console and select Security Groups from the navigation tree on the left. Select the security group assigned to your EC2 instance. Then select the Inbound tab, then click Edit:
Add two Custom TCP Rules with port ranges 20-21 and 1024...
How do I disable the security certificate check in Python requests
...
From the documentation:
requests can also ignore verifying the SSL certificate if you set
verify to False.
>>> requests.get('https://kennethreitz.com', verify=False)
<Response [200]>
If you're using a...
Associative arrays in Shell scripts
...up an item by the key. It only provides a way to find each key (and value) from a numeric index. (An item could be found by key by iterating through the array, but that is not what is desired for an associative array.)
– Eric Postpischil
Dec 22 '18 at 12:03
...
Concat all strings inside a List using LINQ
....Boo);
Console.ReadKey();
}
}
And here is my best :)
items.Select(i => i.Boo).Aggregate((i, j) => i + delimiter + j)
share
|
improve this answer
|
foll...
How exactly does work?
...ere are up to date. I was addressing the fact that the wrong answer wasn't selected at the time the question was asked. Perhaps you should police the folks spreading false assessments about the community improperly selecting answers, instead of folks trying to remind people that things change over ...