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Best approach to converting Boolean object to string in java
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edited Nov 10 '17 at 21:29
answered Sep 16 '13 at 16:37
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With MySQL, how can I generate a column containing the record index in a table?
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order by score;
For large amounts of displayed results, this will be a bit slow and you will want to switch to a self join instead.
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Swift native base class or NSObject
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109
Swift classes that are subclasses of NSObject:
are Objective-C classes themselves
use objc_m...
How to drop a list of rows from Pandas dataframe?
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Here is a bit specific example, I would like to show. Say you have many duplicate entries in some of your rows. If you have string entries you could easily use string methods to find all indexes to drop.
ind_drop = df[df['column_of_s...
Go Unpacking Array As Arguments
...Hunter McMillenHunter McMillen
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How to get time difference in minutes in PHP
...How this solution works for you? Do you mind to brief it at least a little bit? Thanks.
– Wafie Ali
Mar 29 '17 at 1:59
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Pull to refresh UITableView without UITableViewController
...action: #selector(refresh(_:)), for: .valueChanged)
if #available(iOS 10.0, *) {
tableView.refreshControl = refreshControl
} else {
tableView.backgroundView = refreshControl
}
}
@objc func refresh(_ refreshControl: UIRefreshControl) {
// Do your job, when done:
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How do I turn off Oracle password expiration?
...D_PASSWORD
REM Reset the password - Older versions of Oracle (e.g. Oracle 10g and older)
REM ALTER USER &USER_NAME IDENTIFIED BY VALUES &OLD_PASSWORD;
REM Reset the password - Newer versions of Oracle (e.g. Oracle 11g and newer)
ALTER USER &USER_NAME IDENTIFIED BY VALUES &OLD_SPA...
`find -name` pattern that matches multiple patterns
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Perfect. But I find it a bit odd that it doesn't work without the ()
– pedrofurla
Feb 27 '14 at 15:16
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How can I select rows with most recent timestamp for each key value?
...(i.e. latest timestamp) for each unique sensor ID.
In my use case I have ~10M readings from ~1K sensors, so trying to join the table with itself on a timestamp-based filter is very resource-intensive; the above takes a couple of seconds.
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