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What is the difference between Left, Right, Outer and Inner Joins?
...they have one".
This might be a general student list, or could be used to identify students with no locker. Returns 100 rows
RIGHT OUTER JOIN would be "show me all lockers, and the students assigned to them if there are any".
This could be used to identify lockers that have no students assigned, ...
Populating spinner directly in the layout xml
...tem>
</string-array>
In your layout:
<Spinner
android:id="@+id/spinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:drawSelectorOnTop="true"
android:entries="@array/array_name"
/>
I've heard this doe...
Do SVG docs support custom data- attributes?
...red in XML attributes whose names start with data- such as <p data-myid="123456"> . Is this part of the SVG spec too?
...
Get an object properties list in Objective-C
...-C Runtime Library, I had access to the properties the way I wanted:
- (void)myMethod {
unsigned int outCount, i;
objc_property_t *properties = class_copyPropertyList([self class], &outCount);
for(i = 0; i < outCount; i++) {
objc_property_t property = properties[i];
...
Specifying an Index (Non-Unique Key) Using JPA
... indexes = {@Index(name = "i_company_activity", columnList = "activity_id,company_id")})
public class CompanyActivity{
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What is a Maven artifact?
...ts, such as a compiled JAR and a "sources" JAR.
Each artifact has a group ID (usually a reversed domain name, like com.example.foo), an artifact ID (just a name), and a version string. The three together uniquely identify the artifact.
A project's dependencies are specified as artifacts.
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中文网（自研/维护）拓展 · App Inventor 2 中文网
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Sidebar
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StatusBarTools
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中文网（自研/维护...
Entity Framework is Too Slow. What are my options? [closed]
...mplish.
Example:
Product product = db.Products.SingleOrDefault(p => p.Id == 10);
// executes SELECT * FROM Products WHERE Id = 10
ProductDto dto = new ProductDto();
foreach (Category category in product.Categories)
// executes SELECT * FROM Categories WHERE ProductId = 10
{
dto.Categories....
android image button
...d whatever you want and set the icon as the src.
<ImageButton
android:id="@+id/ImageButton01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/album_icon"
android:background="@drawable/round_button" />
...
How to find Unused Amazon EC2 Security groups
... find a way to determine orphan security groups so I can clean up and get rid of them. Does anyone know of a way to discover unused security groups.
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