大约有 16,000 项符合查询结果（耗时：0.0285秒） [XML]
SELECT DISTINCT on one column
...ow has all shown), this is the correct query:
declare @TestData table (ID int, sku char(6), product varchar(15))
insert into @TestData values (1 , 'FOO-23' ,'Orange')
insert into @TestData values (2 , 'BAR-23' ,'Orange')
insert into @TestData values (3 , 'FOO-24' ,'Apple')
insert ...
Stateless and Stateful Enterprise Java Beans
...ually should show that user1 has 1 and user2 has 1 ( if thats what you are intending to do. Shopping cart example as above).
– Krishna
Aug 19 '13 at 16:48
add a comment
...
Calling startActivity() from outside of an Activity?
I'm using an AlarmManager to trigger an intent that broadcasts a signal. The following is my code:
9 Answers
...
How to implement a Map with multiple keys? [duplicate]
... One Map<K1, V> and one Map<K2, V>. If you must have a single interface, write a wrapper class that implements said methods.
share
|
improve this answer
|
follow...
Fragment Inside Fragment
...MainActivity extends AppCompatActivity implements ParentFragment.OnFragmentInteractionListener, ChildFragment.OnFragmentInteractionListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_m...
Are static variables shared between threads?
...by another thread, as the JIT is quite within its rights to foist the read into a register and then you'll never see any update. Any eventual load is luck and should not be relied on.
– Jed Wesley-Smith
Feb 8 '11 at 22:24
...
How can I generate a unique ID in Python? [duplicate]
...s:
21.15. uuid — UUID objects according to RFC 4122
eg:
import uuid
print uuid.uuid4()
7d529dd4-548b-4258-aa8e-23e34dc8d43d
share
|
improve this answer
|
follow
...
RestSharp JSON Parameter Posting
...ct(new { A = "foo", B = "bar" }) too which takes the object properties and converts them into parameters
– John Sheehan
Jun 11 '11 at 3:33
63
...
PHP code to remove everything but numbers
...
@Qtax: good point, yeah I know that's where we get the word "grep" from ("g/re/p")
– Chris Eberle
Jul 7 '11 at 0:39
...
Web workers without a separate Javascript file?
...in, store the worker code as a function, (rather than a static string) and convert using .toString(), then insert the code into CacheStorage under a static URL of your choice.
// Post code from window to ServiceWorker...
navigator.serviceWorker.controller.postMessage(
[ '/my_workers/worker1.js', '(...