大约有 48,000 项符合查询结果（耗时：0.0546秒） [XML]
Side-by-side plots with ggplot2
...x: Using Facets
Facets are helpful for making similar plots for different groups. This is pointed out below in many answers below, but I want to highlight this approach with examples equivalent to the above plots.
mydata <- data.frame(myGroup = c('a', 'b'), myX = c(1,1))
qplot(data = mydata, ...
Regexp Java for password validation
...pport it.
Passwords must include characters from at least two (2) of these groupings: alpha, numeric, and special characters.
^.*(?=.{8,})(?=.*\d)(?=.*[a-zA-Z])|(?=.{8,})(?=.*\d)(?=.*[!@#$%^&])|(?=.{8,})(?=.*[a-zA-Z])(?=.*[!@#$%^&]).*$
I tested it and it works
...
RegEx backreferences in IntelliJ
....com/idea/help/…. Also, for me it works only if I explicitly surround my group with "()", otherwise I can't reference it later. Ex: search (foo) replace: $1bar
– Ghedeon
Nov 17 '15 at 15:41
...
What is the difference between `git fetch origin` and `git remote update origin`?
... used like this.
remote update is a very high-level command - it supports grouped remotes (remotes.<group> = <list>), and updating all remotes (except those with remote.<name>.skipDefaultUpdate set), but not any of the more specific options of fetch. Under the hood, though, it doe...
Generate random numbers following a normal distribution in C/C++
...ah its not every well known outside certain small communities and interest groups
– pyCthon
Nov 4 '11 at 18:55
@Peter ...
cd into directory without having permission
...e files in it (x) and to list the files that are in it (r); it also denies group and others write permission on the directory, which is usually correct (though sometimes you may want to allow group to create files in your directory - but consider using the sticky bit on the directory if you do).
If...
IIS7 Permissions Overview - ApplicationPoolIdentity
...A new dialog box will open. Click 'Add'.
A new dialog box 'Select Users or Groups' will open. Under 'From this location' make sure the name is the same as your local host computer. Then, under 'Enter the object names', type 'IIS AppPool\MyPool' and click 'Check Names' and then 'Ok'
Give full sharing...
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
...d one fails but the second one works, add your user account to the ora_dba group. Do this in Control Panel > Computer Management > Local Users and Groups.
Once you can get connections of the form
sqlplus system/system-password@XE
to work, you ought to be able to connect to Oracle XE via JD...
How to apply a function to two columns of Pandas dataframe
...0
Depending on your use case, it is sometimes helpful to create a pandas group object, and then use apply on the group.
share
|
improve this answer
|
follow
...
What is a stored procedure?
...
A stored procedure is a group of SQL statements that has been created and stored in the database. A stored procedure will accept input parameters so that a single procedure can be used over the network by several clients using different input data. ...