大约有 45,000 项符合查询结果（耗时：0.0549秒） [XML]
How can I preview a merge in git?
...gin
$ git diff origin/master
IMO this solution is much easier and less error prone (and therefore much less risky) than the top solution which proposes "merge then abort".
share
|
improve this a...
How to use SCNetworkReachability in Swift
...ermine whether the network is online. Just make your connection and handle errors if it fails. Making a connection can at times fire up the dormant offline radios.
The one valid use of Reachability is to use it to notify you when a network transitions from offline to online. At that point you shoul...
For loop example in MySQL
...clare str VARCHAR(255) default ''; in the MySQL (5.6) console gives me the error message Error 1064 (42000): ... for the right syntax to use near '' at line 3, which is as clear as mud (although I assume it doesn't like the DEFAULT clause).
– Agi Hammerthief
Ma...
Get records with max value for each group of grouped SQL results
...a mysql-only solution. All other databases I know will throw an SQL syntax error with the message "non aggregated columns are not listed in the group by clause" or similar. Because this solution uses undocumented behavior, the more cautious may want to include a test to assert that it remains workin...
WPF Button with Image
...
if use this button then you have this error"a value of type 'datagridtextcolumn' cannot be added to a collection or dictionary of type observablecollection" or Similar error you shoud add style …> <DataGrid.Resources> ...
Is there a performance difference between a for loop and a for-each loop?
...oduced in
release 1.5, gets rid of the clutter
and the opportunity for error by
hiding the iterator or index variable
completely. The resulting idiom
applies equally to collections and
arrays:
// The preferred idiom for iterating over collections and arrays
for (Element e : elements) {
...
Visual Studio TFS shows unchanged files in the list of pending changes
... prompt of the Developer Command Prompt (and getting a workspace not found error), before navigating to the workspace folder and executing there. If I go straight to the correct folder, the command is not found. (I wouldn't mind a solution to that issue in itself.)
...
How to configure 'git log' to show 'commit date'
...
I get a parsing error: git log --graph --pretty=format:\"%C(yellow)%h%Creset%C(cyan)%C(bold)%d%Creset %C(cyan)(%cr)%Creset %C(green)%ce%Creset %s\" bash: syntax error near unexpected token `('
– frakman1
...
Sequence contains more than one element
...
FYI you can also get this error if EF Migrations tries to run with no Db configured, for example in a Test Project.
Chased this for hours before I figured out that it was erroring on a query, but, not because of the query but because it was when Migr...
Why are Oracle table/column/index names limited to 30 characters?
...RRM which is limited to 255 characters, and which most clients use to make errors visible. I suspect increasing the allowable size of constraint names significantly would impact the ability to report on the violations (especially where a constraint violation has been bubbled up through a few layers ...