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Oracle: If Table Exists
...N OTHERS THEN
IF SQLCODE != -4080 THEN
RAISE;
END IF;
END;
Index
BEGIN
EXECUTE IMMEDIATE 'DROP INDEX ' || index_name;
EXCEPTION
WHEN OTHERS THEN
IF SQLCODE != -1418 THEN
RAISE;
END IF;
END;
Column
BEGIN
EXECUTE IMMEDIATE 'ALTER TABLE ' || table_name
...
Find the files that have been changed in last 24 hours
...
To find all files modified in the last 24 hours (last full day) in a particular specific directory and its sub-directories:
find /directory_path -mtime -1 -ls
Should be to your liking
The - before 1 is important - it means anythi...
Compare two objects' properties to find differences?
...ut an attempt to check against a property which requires
// an index, such as one accessed via this[]
if ( object1Prop.GetIndexParameters().GetLength( 0 ) == 0 )
{
// Get the value of each property
object1PropValue = object1Prop.Get...
Performing Breadth First Search recursively
... Nice. I overlooked the fact that we are dealing with a binary tree. The indexes can be assigned using a DFS. BTW, you forgot a return false at the first case.
– sisis
Mar 31 '10 at 1:33
...
LINQ equivalent of foreach for IEnumerable
... doesn't - the anonymous function taken by Linq functions can also take an index as a parameter, whereas with foreach you must rebuild the classic for (int i..) construct. And functional languages have to allow iteration that has side effects - otherwise you could never do one iota of work with t...
Fastest way to check if a string matches a regexp in ruby?
...ates to true or false and has no need for storing matches, returning match index and that stuff, I wonder if it would be an even faster way of matching than =~.
Ok, I tested this. =~ is still faster, even if you have multiple capture groups, however it is faster than the other options.
BTW, what...
What is the meaning of the 'g' flag in regular expressions?
...n:
> 'aaa'.match(/a/g)
[ 'a', 'a', 'a' ]
> 'aaa'.match(/a/)
[ 'a', index: 0, input: 'aaa' ]
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Xamarin 2.0 vs Appcelerator Titanium vs PhoneGap [duplicate]
After all IDE evolutions (all platforms on topic are changed) of this year, i'm looking to understand what is the state of technology for those platforms.
...
Create an Array of Arraylists
...type over the array particularly for this question.
What if my need is to index n different arraylists.
With declaring List<List<Integer>> I need to create n ArrayList<Integer> objects manually or put a for loop to create n lists or some other way, in any way it will always be my...
What is the difference between Views and Materialized Views in Oracle?
...t statement used by the view joins many tables, or uses joins based on non-indexed columns, the view could perform poorly.
Materialized views
They are similar to regular views, in that they are a logical view of your data (based on a select statement), however, the underlying query result set has ...