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PostgreSQL - fetch the row which has the Max value for a column
...1/29 update
Finally, as of version 8.4, Postgres supports Window Function meaning you can write something as simple and efficient as:
Query #3
-- use Window Functions
-- performs a SINGLE scan of the table
SELECT DISTINCT ON (usr_id)
last_value(time_stamp) OVER wnd,
last_value(lives_remaining...
What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
I tried this in mysql:
14 Answers
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Maven Could not resolve dependencies, artifacts could not be resolved
...provided, the interface definitions are required to compile the code; that means you must have the JAR files defining the interfaces used. All it means for a provided dependency is the JARs are not packaged with your code.
– wmorrell
Mar 13 '19 at 19:55
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Android 4.3 menu item showAsAction=“always” ignored
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'yourapp' means in String.xml <string name="app_name">yourapp</string> right?
– LOG_TAG
Oct 15 '13 at 5:58
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How do I set the offset for ScrollSpy in Bootstrap?
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Bootstrap uses offset to resolve spying only, not scrolling. This means that scrolling to the proper place is up to you.
Try this, it works for me: add an event handler for the navigation clicks.
var offset = 80;
$('.navbar li a').click(function(event) {
event.preventDefault();
$...
RESTful password reset
...user can't be authenticated with the current password. So essentially this means this API could not accept any password at all - thus enabling anyone to reset someone's password, and if the API returns it, even get hold of any known user's password??? Or am I missing something
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What does SQL clause “GROUP BY 1” mean?
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It means to group by the first column regardless of what it's called. You can do the same with ORDER BY.
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What is SYSNAME data type in SQL Server?
...s where system_type_id = 231 gives you two rows.
(i'm not sure what this means yet but i'm 100% sure it's messing up my code right now)
edit: i guess what it means is that you should join by the user_type_id in this situation (my situation) or possibly both the user_type_id and th esystem_type_id...
Possible to do a MySQL foreign key to one of two possible tables?
...try_id),
FOREIGN KEY (user_id) REFERENCES users(user_id),
);
This does mean that to get all of a user's popular favorite places you need to query both of these tables. But it means you can rely on the database to enforce consistency.
Create a places table as a supertable. As Abie mentions, a ...
What does it mean to inflate a view from an xml file?
...the development guide but still wasn't able to pick up a sense for what it means. If someone could provide a very simple example, it'd be much appreciated.
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