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TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi
...onTestCase, on the other hand, is perhaps misleadingly named: it truncates tables to reset the db -- the naming seems to reflect that you can test transactions within a test, not that the test is wrapped as a transaction!
– C S
Sep 20 '18 at 17:40
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Can I create a named default constraint in an add column statement in SQL Server?
In SQL Server, I have a new column on a table:
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SQL Server 2005 How Create a Unique Constraint?
How do I create a unique constraint on an existing table in SQL Server 2005?
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How do SO_REUSEADDR and SO_REUSEPORT differ?
...dress. Depending on the destination address and the content of the routing table, the system will pick an appropriate source address and replace the "any" binding with a binding to the chosen source IP address.
By default, no two sockets can be bound to the same combination of source address and so...
What is the purpose of Flask's context stacks?
...alues in a script that should be run from the shell. For example, a "setup_tables.py" script...
from myapp import app, db
# Set up models
db.create_all()
In this case, the Flask-SQLAlchemy extension knows about the app application, but during create_all() it will throw an error complaining about...
How to concatenate columns in a Postgres SELECT?
I have two string columns a and b in a table foo .
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Disable spell-checking on HTML textfields
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MDN has a table showing the default value of spellcheck for different browsers and elements: developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/…
– Paul
Jan 31 '17 at 17:39
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Trimming a huge (3.5 GB) csv file to read into R
...p://colbycol.r-forge.r-project.org/
It passes any arguments along to read.table, so the combination should let you subset pretty tightly.
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Is it correct to use DIV inside FORM?
...l. You can try it yourself at a HTML validator. Besides, it is almost inevitable these days, since the modern pages are build on div's. If it was not allowed, a simple wrapper or placing the form in a container would already make the page invalid.
– Nrzonline
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MYSQL Dump only certain rows
...t dumps everything. How can I get mysqldump to only dump certain rows of a table?
3 Answers
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