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Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
... on a program that issues DDL. I would like to know whether CREATE TABLE and similar DDL can be rolled back in
5 Answers
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Add a CSS class to
...e is no comma!
If you are altering a _form.html.erb partial of a scaffold and you want to keep
the dynamic change of the button name between controller actions, DO NOT specify a name 'name'.
Without specifying a name and depending on the action the form is rendered the button will get the .class =...
How can I edit a view using phpMyAdmin 3.2.4?
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To expand one what CheeseConQueso is saying, here are the entire steps to update a view using PHPMyAdmin:
Run the following query: SHOW CREATE VIEW your_view_name
Expand the options and choose Full Texts
Press Go
Copy entire cont...
django models selecting single field
I have a table/models called Employees and I would like to get all rows of a single field as a queryset.
5 Answers
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Difference between and text
... you more layout freedom over the design of the button. In all its intents and purposes, it seemed excellent at first, but various browser quirks make it hard to use at times.
In your example, IE6 will send text to the server, while most other browsers will send nothing. To make it cross-browser c...
Difference between Java SE/EE/ME?
... will write simple programs that create files, directories, edit XML files and so on, nothing too complex for now.
14 Answe...
Define a lambda expression that raises an Exception
...ption without defining a named function. All you need is a strong stomach (and 2.x for the given code):
type(lambda:0)(type((lambda:0).func_code)(
1,1,1,67,'|\0\0\202\1\0',(),(),('x',),'','',1,''),{}
)(Exception())
And a python3 strong stomach solution:
type(lambda: 0)(type((lambda: 0).__code_...
Lock Escalation - What's happening here?
... a column) in SQL Server 2008, I clicked the Generate Change Script button and I noticed that the change script it generated drops the column, says "go" and then runs an additional ALTER TABLE statement that appears to set the lock escalation for the table to "TABLE". Example:
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Cost of storing AMI
I understand Amazon will charge per GB provisioned EBS storage. If I create AMI of my instance, does this mean my EBS volume will be duplicated, and hence incur additional cost?
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OSError: [Errno 2] No such file or directory while using python subprocess in Django
...tate "the use of shell=True is strongly discouraged in cases where the command string is constructed from external input", see link in the answer.
– valid
Nov 12 '14 at 4:01
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