大约有 23,000 项符合查询结果（耗时：0.0537秒） [XML]
Do while loop in SQL Server 2008
...AK;
END
GO
ResultSet:
1
2
3
4
5
But try to avoid loops at database level.
Reference.
share
|
improve this answer
|
follow
|
...
sqlalchemy unique across multiple columns
...ble.c.location_code, unique=True)
# version2: declarative
class Location(Base):
__tablename__ = 'locations'
id = Column(Integer, primary_key = True)
customer_id = Column(Integer, ForeignKey('customers.customer_id'), nullable=False)
location_code = Column(Unicode(10), nullable=False...
__init__ for unittest.TestCase
...
You are overriding the TestCase's __init__, so you might want to let the base class handle the arguments for you.
share
|
improve this answer
|
follow
|
...
How to create NS_OPTIONS-style bitmask enumerations in Swift?
...et ThirdOption = MyOptions(rawValue: 1 << 2)
}
Now we can use set-based semantics with MyOptions:
let singleOption = MyOptions.FirstOption
let multipleOptions: MyOptions = [.FirstOption, .SecondOption]
if multipleOptions.contains(.SecondOption) {
print("multipleOptions has SecondOption...
PostgreSQL: Modify OWNER on all tables simultaneously in PostgreSQL
How do I modify the owner of all tables in a PostgreSQL database?
20 Answers
20
...
Java: Multiple class declarations in one file
... @BoomerRogers: No, this is definitely not the "core basis of component based programming". If you're programming against a component, why would you care how the source code is organized? (Personally I prefer dependency injection rather than the service locator pattern, but that's a different mat...
How to make a Java class that implements one interface with two generic types?
...
Here's a possible solution based on Steve McLeod's one:
public class TwoTypesConsumer {
public void consumeTomato(Tomato t) {...}
public void consumeApple(Apple a) {...}
public Consumer<Tomato> getTomatoConsumer() {
return n...
Is asynchronous jdbc call possible?
I wonder if there is a way to make asynchronous calls to a database?
16 Answers
16
...
Benefits of prototypal inheritance over classical?
...e:
Classes.
Object.
Interfaces.
Abstract Classes.
Final Classes.
Virtual Base Classes.
Constructors.
Destructors.
You get the idea. The point is that prototypal inheritance is easier to understand, easier to implement, and easier to reason about.
As Steve Yegge puts it in his classical blog pos...
Download Github pull request as unified diff
...m/v3/media/… , the .diff URL gives a straight diff to the default branch based on git-diff git-scm.com/docs/git-diff output, and the .patch URL gives a concatenation of the individual commits in the PR (each relative to their parent commit) in a format suitable for e-mailing based on git-format-pa...