大约有 23,000 项符合查询结果（耗时：0.0423秒） [XML]
Backwards migration with Django South
...te your_app, South runs all new migrations, in order. (It looks at the database tables to decide which ones are 'new').
However, you can also specify any migration by number, and South will migrate your database, either forward or backward, to take it to that point. So, with the example files above...
Installing PDO driver on MySQL Linux server
...se PDO in order to parameterize my queries and safely save HTML in the database.
6 Answers
...
SQL Server - When to use Clustered vs non-Clustered Index?
...red index.
It's the most replicated data structure in your SQL Server database. The clustering key will be part of each and every non-clustered index on your table, too.
You should use extreme care when picking a clustering key - it should be:
narrow (4 bytes ideal)
unique (it's the "row pointer...
Remove file from SVN repository without deleting local copy
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
How can I reverse a NSArray in Objective-C?
...nts that immutability should not be tested for at run time, but be assumed based on the returned type, so returning an NSMutableArray in this case is perfectly correct code.
– Peter N Lewis
Feb 26 '15 at 0:06
...
Convert varchar to uniqueidentifier in SQL Server
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
How do you run a single query through mysql from the command line?
...time you want to run it:
mysql < thefile
(with all the login and database flags of course)
share
|
improve this answer
|
follow
|
...
Which regular expression operator means 'Don't' match this character?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Split array into chunks
...
Modified from an answer by dbaseman: https://stackoverflow.com/a/10456344/711085
Object.defineProperty(Array.prototype, 'chunk_inefficient', {
value: function(chunkSize) {
var array = this;
return [].concat.apply([],
array.map(f...
Why does “,,,” == Array(4) in Javascript?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...