大约有 45,000 项符合查询结果(耗时:0.0652秒) [XML]
What is the MySQL VARCHAR max size?
... Column Count and Row Size.
Maximum size a single column can occupy, is different before and after MySQL 5.0.3
Values in VARCHAR columns are variable-length strings. The length can be specified as a value from 0 to 255 before MySQL 5.0.3, and 0 to 65,535 in 5.0.3 and later versions. The effect...
What's the difference between belongs_to and has_one?
What is the difference between a belongs_to and a has_one ?
5 Answers
5
...
How to affect other elements when one element is hovered
...
If the cube is directly inside the container:
#container:hover > #cube { background-color: yellow; }
If cube is next to (after containers closing tag) the container:
#container:hover + #cube { background-color: yellow;...
Implications of foldr vs. foldl (or foldl')
...or foldl f x ys looks like
f (... (f (f x y1) y2) ...) yk
An important difference here is that if the result of f x y can be computed using only the value of x, then foldr doesn't' need to examine the entire list. For example
foldr (&&) False (repeat False)
returns False whereas
fold...
Maximum call stack size exceeded error
...nction a(x) {
// The following condition
// is the base case.
if ( ! x) {
return;
}
a(--x);
})(10);
share
|
improve this answer
|
follow
...
How do I dump the data of some SQLite3 tables?
...g other than a comma.
.headers on
.out file.csv
select * from MyTable;
If you want to reinsert into a different SQLite database then:
.mode insert <target_table_name>
.out file.sql
select * from MyTable;
share
...
log4net not working
... you actually called
XmlConfigurator.Configure()
anywhere in your code? If the xml snippet above is in the application configuration file, this call will do the trick. If the xml snippet is in it's own file, you'll need to use the .Configure(string) overload that takes the path to the file. Witho...
Is there any way to use a numeric type as an object key?
...
@Roamer-1888: Not, it isn't. The only difference is that assigning a numeric property to an array affects the array's length property.
– Tim Down
Jul 3 '14 at 8:23
...
How to print a debug log?
...d also suggest using var_export($foo, true) instead of print_r($foo, true) if print_rdoesn't get you the type information you need.
– Ben
Dec 14 '17 at 17:08
...
How to show soft-keyboard when edittext is focused
...ant to automatically show the soft-keyboard when an EditText is focused (if the device does not have a physical keyboard) and I have two problems:
...
