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How to retrieve the current value of an oracle sequence without increment it?
...
SELECT last_number
FROM all_sequences
WHERE sequence_owner = '<sequence owner>'
AND sequence_name = '<sequence_name>';
You can get a variety of sequence metadata from user_sequences, all_sequences and dba_sequences.
These views work across sessions.
EDIT:
If the seque...
Why is using the rails default_scope often recommend against?
Everywhere on the internet people mention that using the rails default_scope is a bad idea, and the top hits for default_scope on stackoverflow are about how to overwrite it. This feels messed up, and merits an explicit question (I think).
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How do I use jQuery's form.serialize but exclude empty fields
...area, select and button elements.
[value!=''] is an attribute not equal filter. The weird (and helpful) thing is that all :input element types have value attributes even selects and checkboxes etc.
Finally to also remove inputs where the value was '.' (as mentioned in the question):
$("#myForm :i...
Making a property deserialize but not serialize with json.net
...e actually several fairly simple approaches you can use to achieve the result you want.
Let's assume, for example, that you have your classes currently defined like this:
class Config
{
public Fizz ObsoleteSetting { get; set; }
public Bang ReplacementSetting { get; set; }
}
enum Fizz { Al...
Read/write files within a Linux kernel module
...l functions instead of the syscall handler directly:
Includes:
#include <linux/fs.h>
#include <asm/segment.h>
#include <asm/uaccess.h>
#include <linux/buffer_head.h>
Opening a file (similar to open):
struct file *file_open(const char *path, int flags, int rights)
{
...
Difference between @Mock and @InjectMocks
... dependencies or only direct members?
– Pierre Thibault
Jul 8 '19 at 20:30
@PierreThibault Injecting mocks only works ...
Getting a list of values from a list of dicts
...o treat missing value for a key, one may also use d.get("key_to_lookup", "alternate_value"). Then, it will look like: [d.get('value', 'alt') for d in l] . If value is not present as key, it will simply return 'alt'.
– abhinav
Feb 4 '18 at 18:46
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how do you push only some of your local git commits?
...his approach (summarized here stackoverflow.com/a/881014/1116674). A good alternative is to create branches for every feature you're working on, and a work branch. Then, you merge specific branches into master so you don't lose the history on them. When working with work, you merge all your branches...
Using pre-compiled headers with CMake
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CMake 3.16 introduced built-in support for precompiled headers. See my answer stackoverflow.com/a/59514029/2799037 No need for third party modules anymore!
– usr1234567
Dec 28 '19 at 19:05
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Why do we check up to the square root of a prime number to determine if it is prime?
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@Benoît You can always use the check i * i <= n instead of i <= sqrt(n) if you want to avoid the intricacies of floating-point numbers.
– Sven Marnach
May 26 at 19:21
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