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How to use shared memory with Linux in C
...e <stdio.h>
#include <stdlib.h>
#include <sys/mman.h>
void* create_shared_memory(size_t size) {
// Our memory buffer will be readable and writable:
int protection = PROT_READ | PROT_WRITE;
// The buffer will be shared (meaning other processes can access it), but
// anonym...
List all sequences in a Postgres db 8.1 with SQL
...class c WHERE c.relkind = 'S';
Typically a sequence is named as ${table}_id_seq. Simple regex pattern matching will give you the table name.
To get last value of a sequence use the following query:
SELECT last_value FROM test_id_seq;
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How to see the changes between two commits without commits in-between?
... This answer utterly fails to address the question, so I have no idea why it has so many upvotes. The OP is specifically asking how NOT to get the first command you give, and the second has nothing to do with anything.
– psusi
Sep 4 '15 at 17:51
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mysql query order by multiple items
...
SELECT id, user_id, video_name
FROM sa_created_videos
ORDER BY LENGTH(id) ASC, LENGTH(user_id) DESC
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How to send FormData objects with Ajax-requests in jQuery? [duplicate]
... Maybe I can set the Content-Type manually?
– Šime Vidas
Nov 28 '11 at 16:50
11
Yes,I believe yo...
req.query and req.param in ExpressJS
Suppose a client sends say Android (Key,value) pair in the request ........ which one to use ?
4 Answers
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Create Django model or update if exists
I want to create a model object, like Person, if person's id doesn't not exist, or I will get that person object.
6 Answer...
EditText, clear focus on touch outside
...eives focus and the on-screen keyboard pops up. When I click somewhere outside of the EditText , it still has the focus (it shouldn't).
I guess I could set up OnTouchListener 's on the other views in layout and manually clear the EditText 's focus. But seems too hackish...
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Team city unmet requirement: MSBuildTools12.0_x86_Path exists
...copied over the files from my x64 machine based on this article so that I didn't need to install vs2012 (though, I did have the change the path to remove x86 on the 32bit machine):
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How to use “not” in xpath?
...is a function in xpath (as opposed to an operator), so
//a[not(contains(@id, 'xx'))]
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