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How do I insert NULL values using PDO?
...d this in a comment on the php docs:
bindValue(':param', null, PDO::PARAM_INT);
EDIT: P.S. You may be tempted to do this bindValue(':param', null, PDO::PARAM_NULL); but it did not work for everybody (thank you Will Shaver for reporting.)
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PostgreSQL: Which Datatype should be used for Currency?
... have to deal with multiple currencies you'll need that much precision for converting. No matter what I'm presenting a user, I always store to US Dollar. In that way I can readily convert to any other currency, given the conversion rate for the day involved.
If you never do anything but one curre...
Write a function that returns the longest palindrome in a given string
... public static String getLongestPalindrome(final String input) {
int rightIndex = 0, leftIndex = 0;
String currentPalindrome = "", longestPalindrome = "";
for (int centerIndex = 1; centerIndex < input.length() - 1; centerIndex++) {
leftIndex = centerIndex - 1...
Why does ~True result in -2?
...
int(True) is 1.
1 is:
00000001
and ~1 is:
11111110
Which is -2 in Two's complement1
1 Flip all the bits, add 1 to the resulting number and interpret the result as a binary representation of the magnitude and add a neg...
Unit testing of private methods [duplicate]
...ods are complex enough to warrant testing in isolation, then refactor them into their own class(es) and test via their public interface(s). Then use them privately in the original class.
share
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imp...
Linq Query keeps throwing “Unable to create a constant value of type System.Object…”, Why?
...
I had the same issue with a nullable int. Using == instead works nicely, but if you want to use .Equals, you can compare it to the value of the nullable variable, so
where t.CustID.Value.Equals(custIdToQuery)
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What is a stored procedure?
... benefit of stored procedures is that you can centralize data access logic into a single place that is then easy for DBA's to optimize. Stored procedures also have a security benefit in that you can grant execute rights to a stored procedure but the user will not need to have read/write permissions ...
How can I represent an 'Enum' in Python?
...TWO')
>>> Numbers.ZERO
0
>>> Numbers.ONE
1
Support for converting the values back to names can be added this way:
def enum(*sequential, **named):
enums = dict(zip(sequential, range(len(sequential))), **named)
reverse = dict((value, key) for key, value in enums.iteritems(...
How to prevent a dialog from closing when a button is clicked
...tring.cancel, null)
.create();
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialogInterface) {
Button button = ((AlertDialog) dialog).getButton(AlertDialog.BUTTON_POSITIVE);
button.setOnClickListener(n...
Android: Last line of textview cut off
...
This is the correct answer and it point out the reason why error happened. Thanks.
– Hoang Nguyen Huu
Nov 7 '18 at 4:24
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