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Find kth smallest element in a binary search tree in Optimum way
... tree, your algorithm will take O(n) time to finish, which is bad for the selected answer-O(log n)
– Spark8006
Jul 2 '15 at 14:58
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How can I determine if a date is between two dates in Java? [duplicate]
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Is this better than the "selected solved answer"?
– Christian Moen
Jan 21 '17 at 23:01
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In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
... work for a ForeignKey field, a few changes need to be made. Firstly, the SELECT HTML tag does not have the readonly attribute. We need to use disabled="disabled" instead. However, then the browser doesn't send any form data back for that field. So we need to set that field to not be required so...
What MySQL data type should be used for Latitude/Longitude with 8 decimal places?
...dinates to SQL you can set as lat*10000000 and long*10000000. And when you selecting with distance/radius you will divide storage coordinates to 10000000. I was test it with 300K rows, query response time is good. ( 2 x 2.67GHz CPU, 2 GB RAM, MySQL 5.5.49 )
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Why are Oracle table/column/index names limited to 30 characters?
...ine of code that goes something like
l_table_name VARCHAR2(30);
BEGIN
SELECT table_name
INTO l_table_name
FROM dba_tables
WHERE ...
to suddenly break because the DBA 15 years ago used VARCHAR2(30) rather than DBA_TABLES.TABLE_NAME%TYPE in the script would cause massive revolt. I w...
When/Why to use Cascading in SQL Server?
...alking about to restrict all data accesses to SPs, or at the least all but Select. See my answer under stackoverflow.com/questions/1171769/…
– Cruachan
May 29 '10 at 9:32
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What are naming conventions for MongoDB?
... singular (collections are plural)
MongoDB states a nice example:
To select a database to use, in the mongo shell, issue the use <db>
statement, as in the following example:
use myDB
use myNewDB
Content from: https://docs.mongodb.com/manual/core/databases-and-collections/#...
How to Update Multiple Array Elements in mongodb
...n the search result to just those that match the conditions for the update selection:
db.collection.aggregate([
{ "$match": { "events.handled": 1 } },
{ "$project": {
"events": {
"$setDifference": [
{ "$map": {
"input": "$events",
...
How to filter object array based on attributes?
...sers)
.startsWith("first", "a")
.orEndsWith("y")
.orderBy("admin", "age")
.select();
For more information you can follow the link http://www.hugoware.net/projects/jlinq
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