大约有 47,000 项符合查询结果（耗时：0.0982秒） [XML]
H2 in-memory database. Table not found
I've got a H2 database with URL "jdbc:h2:test" . I create a table using CREATE TABLE PERSON (ID INT PRIMARY KEY, FIRSTNAME VARCHAR(64), LASTNAME VARCHAR(64)); . I then select everything from this (empty) table using SELECT * FROM PERSON . So far, so good.
...
How do I diff the same file between two different commits on the same branch?
In Git, how could I compare the same file between two different commits (not contiguous) on the same branch (master for example)?
...
Bootstrap Carousel image doesn't align properly
Please take a look at the following image, we are using bootstrap carousel to rotate the images.
However, when the window width is large, the image doesn't align with the border properly.
...
How to get current time with jQuery
The following returns time in microseconds, for example 4565212462.
15 Answers
15
...
Android: How do I get string from resources using its name?
I would like to have 2 languages for the UI and separate string values for them in my resource file res\values\strings.xml :
...
What does FrameLayout do?
I'm new to programming. I was using Graphical Layout then when I was reading xml file, I saw FrameLayout. Then I searched, but I couldn't find something useful. What is FrameLayout and what does it do?
...
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 :
...
Make anchor link go some pixels above where it's linked to
...
window.addEventListener("hashchange", function () {
window.scrollTo(window.scrollX, window.scrollY - 100);
});
This will allow the browser to do the work of jumping to the anchor for us and then we will use that position...
Find element's index in pandas Series
I know this is a very basic question but for some reason I can't find an answer. How can I get the index of certain element of a Series in python pandas? (first occurrence would suffice)
...
how to exclude null values in array_agg like in string_agg using postgres?
... use array_agg to collect names, I get my names separated by commas, but in case there is a null value, that null is also taken as a name in the aggregate. For example :
...