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T-SQL: Selecting rows to delete via joins
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DELETE TableA
FROM TableA a
INNER JOIN TableB b
ON b.Bid = a.Bid
AND [my filter condition]
should work
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Python: most idiomatic way to convert None to empty string?
What is the most idiomatic way to do the following?
16 Answers
16
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String replacement in batch file
We can replace strings in a batch file using the following command
4 Answers
4
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Query for array elements inside JSON type
I'm trying to test out the json type in PostgreSQL 9.3.
I have a json column called data in a table called reports . The JSON looks something like this:
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Import SQL file into mysql
...itm . I haven't created any tables there. But I have a SQL file which contains all the necessary data for the database. The file is nitm.sql which is in C:\ drive . This file has size of about 103 MB. I am using wamp server.
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Java: How to convert List to Map
...a colleague about what would be the optimal way to convert List to Map in Java and if there any specific benefits of doing so.
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Setting transparent images background in IrfanView
...parent background as black color, so I see just black on black. I've found in Irfan settings that I can change the window's background color, but it changes only around the image, the transparent color is still black.
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Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?
I'll explain by example:
21 Answers
21
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Java - get pixel array from image
I'm looking for the fastest way to get pixel data (int the form int[][] ) from a BufferedImage . My goal is to be able to address pixel (x, y) from the image using int[x][y] . All the methods I have found do not do this (most of them return int[] s).
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How to cancel a Task in await?
I'm playing with these Windows 8 WinRT tasks, and I'm trying to cancel a task using the method below, and it works to some point. The CancelNotification method DOES get called, which makes you think the task was cancelled, but in the background the task keeps running, then after it's completed, the ...