大约有 6,887 项符合查询结果（耗时：0.0201秒） [XML]
MySQL select with CONCAT condition
...set condition on aggregate functions(like MAX()). Having clause cannot use index so it is slow.
– Mostafa Vatanpour
Jul 5 '16 at 4:15
add a comment
|
...
PostgreSQL function for last inserted ID
... a primary key; this also creates
-- a UNIQUE constraint and a b+-tree index on the column
id SERIAL PRIMARY KEY,
name TEXT,
age INT4
);
INSERT INTO users (name, age) VALUES ('Mozart', 20);
Then for getting last inserted id use this for table "user" seq column name "id"
...
When using Spring Security, what is the proper way to obtain current username (i.e. SecurityContext)
...ntroller" class="com.foo.FooController">
...
<constructor-arg index="1">
<bean class="com.foo.SecurityContextHolderFacade">
</constructor-arg>
</bean>
It seems more than a little silly that Spring, a dependency injection container of all things, has not supp...
Resolving a 'both added' merge conflict in git?
...
If you use git rm git will remove all versions of that path from the index so your resolve action will leave you without either version.
You can use git checkout --ours src/MyFile.cs to choose the version from the branch onto which you are rebasing or git checkout --theirs src/MyFile.cs to ch...
Can you find all classes in a package using reflection?
...ith it you can easily achieve what you want.
First, setup the reflections index (it's a bit messy since searching for all classes is disabled by default):
List<ClassLoader> classLoadersList = new LinkedList<ClassLoader>();
classLoadersList.add(ClasspathHelper.contextClassLoader());
cla...
Relational table naming convention [closed]
...nate Key (IDEF1X term)
Note that the table name is not required in the index name, because it always shows up as table_name.index_name.
So when Customer.UC_CustomerId or Product.U__AK appears in an error message, it tells you something meaningful. When you look at the indices on a table, you c...
Elegant way to check for missing packages and install them?
... @MERose pacman is now on CRAN cran.r-project.org/web/packages/pacman/index.html
– Tyler Rinker
Feb 17 '15 at 17:48
6
...
Simplest code for array intersection in javascript
...e => array2.includes(value))
For older browsers, with Array.prototype.indexOf and without an arrow function:
array1.filter(function(n) {
return array2.indexOf(n) !== -1;
})
share
|
improv...
slashes in url variables
...der.encode(url, "UTF-8")
Then you can say
yourUrl = "www.musicExplained/index.cfm/artist/" + URLEncoder.encode(VariableName, "UTF-8")
share
|
improve this answer
|
follow...
Get original URL referer with PHP?
... http_referer exists, as it often doesn't, which could cause an "Undefined index" error.
– Justin
Jun 26 '14 at 19:25
...