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Does order of where clauses matter in SQL?
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No, that order doesn't matter (or at least: shouldn't matter).
Any decent query optimizer will look at all the parts of the WHERE clause and figure out the most efficient way to satisfy that query.
I know the SQL Server query optimizer will pick a suitable ind...
How to obtain the last path segment of a URI
...wing characters up to the next / or ?
// the + makes sure that at least 1 character is matched
.* // find all following characters
$1 // this variable references the saved second group from above
// I.e. the entire string is replaces with just the portion
// ...
Default implementation for Object.GetHashCode()
...lly fine. If writing a struct, it is more common to override equality (not least to avoid boxing), but it is very rare you write a struct anyway!
When overriding equality, you should always have a matching Equals() and GetHashCode() (i.e. for two values, if Equals() returns true they must return th...
How to find serial number of Android device?
...vices, but I was able to verify that as of the beginning of April 2011, at least, it's still quite easy to find devices that have the broken ANDROID_ID.
Based on Google's recommendations, I implemented a class that will generate a unique UUID for each device, using ANDROID_ID as the seed where app...
Authoritative position of duplicate HTTP GET query keys
... order when I tested that), PHP will give you always the last and Java (at least the system I worked with based on Java) always the first value. stackoverflow.com/questions/1809494/…
– SimonSimCity
Mar 8 '12 at 7:33
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How to delete an SMS from the inbox in Android programmatically?
...ersation, but for our purposes, it's a sufficient compromise as we will at least know all messages will be looked at and verified. Our flow will probably need to then listen for the message, capture for the message we want, do a query to get the thread_id of the recently inbounded message and do th...
R memory management / cannot allocate vector of size n Mb
...tion from re-loading/re-computing the variables passed to the loop, but at least you can get around the memory issue.
– Benjamin
Mar 4 '16 at 20:50
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List comprehension with if statement
... outputlist.append(y)
but a list comprehension must start with at least one outer loop.
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Oracle SQL Query for listing all Schemas in a DB
...n where people only want to call something a schema if it actually owns at least one object so that the hundreds of user accounts that will never own any objects are excluded. In that case
SELECT username
FROM dba_users u
WHERE EXISTS (
SELECT 1
FROM dba_objects o
WHERE o.owner =...
Implementing Comments and Likes in database
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Because I need to implement it by myself. At least for now... and, I thought that maybe it is a good occasion to start liking a databases a little bit ;) Thank you about your suggestion with stored procedure. Do someone know, if they are mapped by Django ORM automatical...