大约有 48,000 项符合查询结果(耗时:0.0765秒) [XML]
Float vs Decimal in ActiveRecord
Sometimes, Activerecord data types confuse me. Err, often. One of my eternal questions is, for a given case,
3 Answers
...
Minimum and maximum date
I was wondering which is the minimum and the maximum date allowed for a Javascript Date object. I found that the minimum date is something like 200000 B.C., but I couldn't get any reference about it.
...
Calculate total seconds in PHP DateInterval
What is the best way to calculate the total number of seconds between two dates? So far, I've tried something along the lines of:
...
Add unique constraint to combination of two columns
I have a table and, somehow, the same person got into my Person table twice. Right now, the primary key is just an autonumber but there are two other fields that exist that I want to force to be unique.
...
How to create a loop in bash that is waiting for a webserver to respond?
How to create a loop in bash that is waiting for a webserver to respond?
6 Answers
6
...
Remove the first character of a string
I would like to remove the first character of a string.
4 Answers
4
...
How do I sort a dictionary by value?
I have a dictionary of values read from two fields in a database: a string field and a numeric field. The string field is unique, so that is the key of the dictionary.
...
How to compare types
Quick question: how to compare a Type type (pun not intended) with another type in C#?
I mean, I've a Type typeField and I want to know if it is System.String , System.DateTime , etc., but typeField.Equals(System.String) doesn't work.
...
Passing a 2D array to a C++ function
I have a function which I want to take, as a parameter, a 2D array of variable size.
15 Answers
...
How to work around the stricter Java 8 Javadoc when using Maven
You'll quickly realize that JDK8 is a lot more strict (by default) when it comes to Javadoc. ( link - see last bullet point)
...
