大约有 47,000 项符合查询结果(耗时:0.0590秒) [XML]
Make column not nullable in a Laravel migration
...
242
Prior to Laravel 5 there was no Laravel native way of altering an existing table column using ...
How do I reference a specific issue comment on github?
...
answered Aug 6 '14 at 20:00
centiccentic
13.8k66 gold badges5353 silver badges110110 bronze badges
...
What are the options for storing hierarchical data in a relational database? [closed]
...00:053 (compared to 00:00:00:870)
Duration for 10,000 Nodes = 00:00:00:323 (compared to 00:01:01:783)
Duration for 100,000 Nodes = 00:00:03:867 (compared to 00:49:59:730)
Duration for 1,000,000 Nodes = 00:00:54:283 (compared to something like 2 days!!!)
Yes, that's correct. 1 million nodes c...
Install MySQL on Ubuntu without a password prompt
...
432
sudo debconf-set-selections <<< 'mysql-server mysql-server/root_password password your_...
Java SafeVarargs annotation, does a standard or best practice exist?
...
2 Answers
2
Active
...
How to undo 'git reset'?
...
2484
Short answer:
git reset 'HEAD@{1}'
Long answer:
Git keeps a log of all ref updates (e.g.,...
Escaping regex string
...
Use the re.escape() function for this:
4.2.3 re Module Contents
escape(string)
Return string with all non-alphanumerics backslashed; this is useful if you want to match an arbitrary literal string that may have regular expression metacharacters in it.
A s...
Permanently Set Postgresql Schema Path
...n Postgres so that I don't every time specify schema dot table e.g. schema2.table .
Set schema path:
3 Answers
...
Is it possible to group projects in Eclipse?
...
|
edited Jun 4 '12 at 18:47
user229044♦
202k3535 gold badges298298 silver badges309309 bronze badges
...
datetime dtypes in pandas read_csv
...
280
Why it does not work
There is no datetime dtype to be set for read_csv as csv files can only ...