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Inserting multiple rows in mysql
... include multiple lists of column values, each enclosed within parentheses and separated by commas.
Example:
INSERT INTO tbl_name
(a,b,c)
VALUES
(1,2,3),
(4,5,6),
(7,8,9);
Source
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INSERT INTO…SELECT for all MySQL columns
...lt; '2011-01-01 00:00:00';
If the id columns is an auto-increment column and you already have some data in both tables then in some cases you may want to omit the id from the column list and generate new ids instead to avoid insert an id that already exists in the original table. If your target ta...
What is “origin” in Git?
... what URL belongs to each remote by using
git remote -v
In the push command, you can use remotes or you can simply use a URL directly. An example that uses the URL:
git push git@github.com:git/git.git master
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How to enable or disable an anchor using jQuery?
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Actually My coding is in Rails and my coding is <%= foo.add_associated_link('Add email', @project.email.build) %> when it I render it into browser i can see the email but i cannot disabled it even i tried with coding such as e.preventDefault() but of...
Replacing all non-alphanumeric characters with empty strings
...hould the space at the end of the character class.
– Andrew Duffy
Nov 26 '09 at 20:31
6
He's prob...
Creating a simple XML file using python
...
These days, the most popular (and very simple) option is the ElementTree API,
which has been included in the standard library since Python 2.5.
The available options for that are:
ElementTree (Basic, pure-Python implementation of ElementTree. Part of ...
Post JSON using Python Requests
I need to POST a JSON from a client to a server. I'm using Python 2.7.1 and simplejson. The client is using Requests. The server is CherryPy. I can GET a hard-coded JSON from the server (code not shown), but when I try to POST a JSON to the server, I get "400 Bad Request".
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How to compare only Date without Time in DateTime types in Linq to SQL with Entity Framework?
... Entity Framework environment like I did check out the answer below by Alejandro and the comment by wasatchWizard.
– Mike Devenney
Apr 13 '17 at 17:05
11
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com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
...tions.
DB server has run out of connections.
Something in between Java and DB is blocking connections, e.g. a firewall or proxy.
To solve the one or the other, follow the following advices:
Verify and test them with ping.
Refresh DNS or use IP address in JDBC URL instead.
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Is recursion a feature in and of itself?
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To answer your specific question: No, from the standpoint of learning a language, recursion isn't a feature. If your professor really docked you marks for using a "feature" he hadn't taught yet, that was wrong.
Reading between the lines, one possibility is that by using r...