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How do you list the primary key of a SQL Server table?
...E_SCHEMA = '<your schema name>'" as well.
– DavidStein
May 17 '13 at 15:56
If the above query returns 3 rows, a,...
How to access the GET parameters after “?” in Express?
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Could you please tell me how to validate "id" ?
– Anand Raj
Feb 9 '17 at 8:47
1
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Delete all Duplicate Rows except for One in MySQL? [duplicate]
...e.
NB - You need to do this first on a test copy of your table!
When I did it, I found that unless I also included AND n1.id <> n2.id, it deleted every row in the table.
If you want to keep the row with the lowest id value:
DELETE n1 FROM names n1, names n2 WHERE n1.id > n2.id AND n...
Handling a Menu Item Click Event - Android
...icked, but I'm not sure how to do this. I've been reading through the android documentation, but my implementation isn't correct..and some guidance in the right direction would help. I've listed my code below and commented out my problem areas, I think I'm invoking the wrong method.
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How to set radio button checked as default in radiogroup?
...hould check the radiobutton in the radiogroup like this:
radiogroup.check(IdOfYourButton)
Of course you first have to set an Id to your radiobuttons
EDIT: i forgot, radioButton.getId() works as well, thx Ramesh
EDIT2:
android:checkedButton="@+id/my_radiobtn"
works in radiogroup xml
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MySQL select one column DISTINCT, with corresponding other columns
...STINCT results from the FirstName column, but I need the corresponding ID and LastName .
12 Answers
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Duplicate ID, tag null, or parent id with another fragment for com.google.android.gms.maps.MapFragme
...r, I found a solution that works for me:
private static View view;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
if (view != null) {
ViewGroup parent = (ViewGroup) view.getParent();
if (parent != null)
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App Inventor 2 DynamicComponents 拓展：动态创建AI2组件对象 · App Inventor 2 中文网
...不将其保存到已创建的组件列表中，因此它不会关联到 ID。请注意，你无法直接在 Screen 中创建组件，你需要事先在 Screen 中设置布局才能执行此操作。
将已创建组件的 ID...
MYSQL OR vs IN performance
...elieve people who give their "opinion", science is all about testing and evidence.
I ran a loop of 1000x the equivalent queries (for consistency, I used sql_no_cache):
IN: 2.34969592094s
OR: 5.83781504631s
Update:
(I don't have the source code for the original test, as it was 6 years ago, though...
How do you copy a record in a SQL table but swap out the unique id of the new row?
...ce table and destination table are the same and the primary key is a uniqueidentifier (guid). When I try this:
11 Answers
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