大约有 30,000 项符合查询结果（耗时：0.0487秒） [XML]
Running a cron job on Linux every six hours
... thank your for the response, this is every 6 hours starting what time? the time when the cron is created?
– Gandalf StormCrow
Jul 19 '12 at 14:19
...
Javascript switch vs. if…else if…else
...7 years ago, so javascript optimizations have changed tremendously in this time. In compiled languages, the performance difference between these three operations is "almost never significant enough to care". Don't bother optimizing things that won't affect actual performance. Optimize readability....
When to use CouchDB over MongoDB and vice versa
...
Good info for the time, but this is really old... lots has changed (including REST interfaces for Mongo).
– rICh
Oct 12 '14 at 23:24
...
Under what circumstances is an SqlConnection automatically enlisted in an ambient TransactionScope T
...e, but I think errors can occur if commands are issued on both at the same time: errors like "Transaction context in use by another session"
Q3. Yes, it gets escalated to a distributed transaction, so enlisting more than one connection, even with the same connection string, causes it to become a di...
How do I control how Emacs makes backup files?
...on-nil Emacs automatically creates a backup of the original file the first time the file is saved from a buffer. If you're editing a new file Emacs will create a backup the second time you save the file.
No matter how many times you save the file the backup remains unchanged. If you kill the buffe...
Cycles in family tree software
... life happens more often than you'd imagine (especially when going back in time to the 1700-1800).
We have modeled our family tree to what happens in the real world: Events (for example, births, weddings, engagement, unions, deaths, adoptions, etc.). We do not put any restrictions on these, except ...
Mongoose indexing in production code
...an effect on performance when you're first creating the index, and at that time the collections are often empty so creating an index would be quick anyway.
My suggestion is to leave autoIndex enabled unless you have a specific situation where it's giving you trouble; like if you want to add a new i...
Liquibase lock - reasons?
...
Sometimes if the update application is abruptly stopped, then the lock remains stuck.
Then running
UPDATE DATABASECHANGELOGLOCK SET LOCKED=0, LOCKGRANTED=null, LOCKEDBY=null where ID=1;
against the database helps.
Or you can...
Why Does OAuth v2 Have Both Access and Refresh Tokens?
...to scale and support multiple authorization servers. There is a window of time when an access token is valid, but authorization is revoked.
Indeed, in the situation where Resource Server and Authorization Server is the same entity, and where the connection between user and either of them is (usu...
Why is Java's boolean primitive size not defined?
...managed via your getters and setters. However, you'll pay a penalty in CPU time that is probably bigger than the penalty in memory.
share
|
improve this answer
|
follow
...