大约有 43,000 项符合查询结果（耗时：0.0808秒） [XML]
How to do 3 table JOIN in UPDATE query?
I asked a question and got this reply which helped.
6 Answers
6
...
How to efficiently build a tree from a flat structure?
I have a bunch of objects in a flat structure. These objects have an ID and a ParentID property so they can be arranged in trees. They are in no particular order.
Each ParentID property does not necessarily matches with an ID in the structure. Therefore their could be several trees emerging ...
Why Does OAuth v2 Have Both Access and Refresh Tokens?
Section 4.2 of the draft OAuth 2.0 protocol indicates that an authorization server can return both an access_token (which is used to authenticate oneself with a resource) as well as a refresh_token , which is used purely to create a new access_token :
...
Parse an HTML string with JS
I searched for a solution but nothing was relevant, so here is my problem:
9 Answers
9...
Is quitting an application frowned upon?
Moving on in my attempt to learn Android, I just read the following :
40 Answers
40
...
Proper Repository Pattern Design in PHP?
Preface: I'm attempting to use the repository pattern in an MVC architecture with relational databases.
11 Answers
...
Change a Django form field to a hidden field
I have a Django form with a RegexField , which is very similar to a normal text input field.
7 Answers
...
How to filter a dictionary according to an arbitrary condition function?
I have a dictionary of points, say:
7 Answers
7
...
Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
Until today, I thought that for example:
11 Answers
11
...
Pointer expressions: *ptr++, *++ptr and ++*ptr
Recently I have come across this problem which I am unable to understand by myself.
10 Answers
...