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“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
... still not write international text into db getting same failure as above
Now using this how-to-convert-an-entire-mysql-database-characterset-and-collation-to-utf-8
Update all your db to use utf8mb4
ALTER DATABASE YOURDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
Run this query that giv...
How can I implement an Access Control List in my Web MVC application?
...// you can execute all the methods you had in previous controller
// only now they will be checked against ACL
$controller->actionIndex();
As you might notice, this solution has several advantages:
containment can be used on any object, not just instances of Controller
check for authorizatio...
Where does mongodb stand in the CAP theorem?
...k-file, as soon as it reconnects to the set(the old primary is a secondary now). So in this case some consistency is sacrificed for the sake of availability.
Partition Tolerance:
Through the use of said Replica-Sets MongoDB also achieves the partition tolerance: As long as more than half of the se...
Error: could not find function … in R
...ays, "could not find function "cosdistCoVol"." I am not sure how to let R knows about my director in which all the functions are downloaded in my "celestial" package separately. Your help is appreciated.
– Benjamin
May 18 '16 at 20:45
...
jQuery.ajax handling continue responses: “success:” vs “.done”?
I have been working with jQuery and AJAX for a few weeks now and I saw two different ways to 'continue' the script once the call has been made: success: and .done .
...
Why does git revert complain about a missing -m option?
...you want to throw away the merge commit:
$ git reset --hard HEAD^
HEAD is now at b7e7176 baz
$ git lola
* b7e7176 (HEAD, master) baz
| * c7256de (otherguy) bar
|/
* 9968f79 foo
As documented in the git rev-parse manual
<rev>^, e.g. HEAD^, v1.5.1^0
A suffix ^ to a revision parameter ...
Drop all duplicate rows across multiple columns in Python Pandas
...
This is much easier in pandas now with drop_duplicates and the keep parameter.
import pandas as pd
df = pd.DataFrame({"A":["foo", "foo", "foo", "bar"], "B":[0,1,1,1], "C":["A","A","B","A"]})
df.drop_duplicates(subset=['A', 'C'], keep=False)
...
ERROR 1452: Cannot add or update a child row: a foreign key constraint fails
...ill need to update the data in the child table (instead of deleting them).
Now, we can utilize Left Join to find all those rows in the child table, which does not have matching values in the parent table. Following query would be helpful to fetch those non-matching rows:
SELECT child_table.*
FROM c...
What do linkers do?
I've always wondered. I know that compilers convert the code you write into binaries but what do linkers do? They've always been a mystery to me.
...
How to fix corrupted git repository?
... to CodeGnome's last option, if only the local repo is corrupted, and you know the url to the remote, you can use this to re-set your .git to match the remote (replacing ${url} with the remote url):
mv -v .git .git_old && # remove old git
git init && ...