大约有 39,300 项符合查询结果（耗时：0.0560秒） [XML]
How to create ENUM type in SQLite?
...
answered Mar 14 '11 at 15:52
MPelletierMPelletier
14.7k1212 gold badges7777 silver badges125125 bronze badges
...
What does “not run” mean in R help pages?
...
rcsrcs
58.7k1818 gold badges161161 silver badges144144 bronze badges
3
...
Float vs Decimal in ActiveRecord
...u do this:
irb:001:0> "%.47f" % (1.0/10)
=> "0.10000000000000000555111512312578270211815834045" # not "0.1"!
whereas if you just do
irb:002:0> (1.0/10).to_s
=> "0.1" # the interprer rounds the number for you
So if you are dealing with small fractions, like compounding interests, o...
Laravel orderBy on a relationship
...
Rob GordijnRob Gordijn
5,04111 gold badge1717 silver badges2626 bronze badges
...
Difference between two DateTimes C#?
...
answered May 10 '09 at 14:11
Joey RobertJoey Robert
6,54866 gold badges3030 silver badges3131 bronze badges
...
What is the difference between Nexus and Maven?
...
|
edited May 11 '18 at 21:28
Michael Mrozek
141k2424 gold badges151151 silver badges159159 bronze badges
...
Return 0 if field is null in MySQL
...
answered Dec 3 '14 at 11:49
ackuserackuser
4,02055 gold badges3030 silver badges4141 bronze badges
...
Is it a good idea to index datetime field in mysql?
... me before
– Gaz_Edge
Jan 31 '14 at 11:16
1
But if you query the data with date range, such as da...
C char array initialization
...', 'n', 'g'};.
– ouah
Dec 19 '14 at 11:17
|
show 11 more comments
...
@ character before a function call
...
solidgumbysolidgumby
2,23411 gold badge1414 silver badges66 bronze badges
...