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MySQL ON DUPLICATE KEY - last insert id?
...his page out: https://web.archive.org/web/20150329004325/https://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html
At the bottom of the page they explain how you can make LAST_INSERT_ID meaningful for updates by passing an expression to that MySQL function.
From the MySQL documentation examp...
Use JavaScript to place cursor at end of text in text input element
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Adding up BigDecimals using Streams
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I see that you have added new data, therefore the new answer will become:
List<Invoice> invoiceList = new ArrayList<>();
//populate
Function<Invoice, BigDecimal> totalMapper = invoice -> invoice.getUnit_price().multiply(invoice.getQuantity());
BigDecimal result = invoice...
How to align absolutely positioned element to center?
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Best way to include CSS? Why use @import?
...h stylesheets are always loaded together, it can also be helpful to simply combine them into a single file.
There are occasionally situations where @import is appropriate, but they are generally the exception, not the rule.
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How to delete duplicate rows in SQL Server?
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I like CTEs and ROW_NUMBER as the two combined allow us to see which rows are deleted (or updated), therefore just change the DELETE FROM CTE... to SELECT * FROM CTE:
WITH CTE AS(
SELECT [col1], [col2], [col3], [col4], [col5], [col6], [col7],
RN = ROW_...
How can I prevent the backspace key from navigating back?
... NPM project with a clean version of the currently accepted answer: github.com/slorber/backspace-disabler (it also support contenteditables and has no dependency)
– Sebastien Lorber
Aug 6 '15 at 18:14
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Assignment in an if statement
...;Dog>(dog => {
// Use dog in here
});
Alternatively, you could combine the two:
public static void AsIf<T>(this object value, Action<T> action) where T : class
{
// EVIL EVIL EVIL
for (var t = value as T; t != null; t = null)
{
action(t);
}
}
You ca...
In what order are Panels the most efficient in terms of render time and performance?
...s of each panel than it is to try to give an absolute relative performance comparison.
WPF makes two passes when rendering content: Measure and Arrange. Each panel has different performance characteristics for each of these two passes.
The performance of the measure pass is most affected by the a...
Finding local IP addresses using Python's stdlib
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