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Rank function in MySQL
...ows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE person (id int, first_name varchar(20), age int, gender char(1));
INSERT INTO person VALUES (1, 'Bob', 25, 'M');
INSERT INTO person VALUES (2, 'Jane', 20, 'F');
INSERT INTO person VALUES (3, 'Jack', ...
How to “grep” for a filename instead of the contents of a file?
...
The easiest way is
find . | grep test
here find will list all the files in the (.) ie current directory, recursively.
And then it is just a simple grep. all the files which name has "test" will appeared.
you can play with grep as per your requirement.
Not...
Run a Docker image as a container
...you didn't specify tag_name it will automatically run an image with the 'latest' tag.
Instead of image_name, you can also specify an image ID (no tag_name).
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Best way to use PHP to encrypt and decrypt passwords? [duplicate]
...e process spaces are also removed. I added the spaces so that people could test and verify that the right way to trim a decrypted string is: $original = rtrim($decrypted, "\0"); - note the \0. =)
– Alix Axel
Dec 13 '11 at 12:17
...
Does Flask support regular expressions in its URL routing?
...Error: View function mapping is overwriting an existing endpoint function: test
– spark
Jul 26 '18 at 20:39
...
Printing a variable memory address in swift
...s is not available on all types, here another example with a CInt
var testNumber : CInt = 289
takesInt(&testNumber)
Where takesInt is a C helper function like this
void takesInt(int *intptr)
{
printf("%p", intptr);
}
On the Swift side, this function is takesInt(intptr: CMutable...
How to merge YAML arrays?
..."$SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts
- chmod 644 ~/.ssh/known_hosts
test:
image: python:3.7.3
stage: test
script:
- *pip_git
- pip install -q -r requirements_test.txt
- python -m unittest discover tests
use the same `*pip_git` on e.g. build image...
wher...
Objective-C : BOOL vs bool
... means that this example code will run differently on different platforms (tested it myself):
int myValue = 256;
BOOL myBool = myValue;
if (myBool) {
printf("i'm 64-bit iOS");
} else {
printf("i'm 32-bit iOS");
}
BTW never assign things like array.count to BOOL variable because about 0.4%...
Recommended way of making React component/div draggable
... {this.props.children}
</div>
);
}
}
class Test extends React.PureComponent {
state = {
x: 100,
y: 200,
};
_move = (x, y) => this.setState({x, y});
// you can implement grid snapping logic or whatever here
/*
_move = (x, y)...
List of special characters for SQL LIKE clause
...
Potential answer for SQL Server
Interesting I just ran a test using LinqPad with SQL Server which should be just running Linq to SQL underneath and it generates the following SQL statement.
Records
.Where(r => r.Name.Contains("lkjwer--_~[]"))
-- Region Parameters
DECLARE @...