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SQLAlchemy: cascade delete
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The problem is that sqlalchemy considers Child as the parent, because that is where you defined your relationship (it doesn't care that you called it "Child" of course).
If you define the relationship on the Parent class instead, it will work:
children = rel...
How to ALTER multiple columns at once in SQL Server
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Doing multiple ALTER COLUMN actions inside a single ALTER TABLE statement is not possible.
See the ALTER TABLE syntax here
You can do multiple ADD or multiple DROP COLUMN, but just one ALTER
COLUMN.
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MySQL, better to insert NULL or empty string?
...insert a NULL value or an empty string into the DB columns where the user didn't put any data?
6 Answers
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How to sort with lambda in Python
...reverse=False)
so without the key=, the function you pass in will be considered a cmp function which takes 2 arguments.
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Search text in stored procedure in SQL Server
... @Imad You can get the schema name by adding SCHEMA_NAME(o.schema_id) AS Schema_Name to the select clause.
– patricus
Jul 7 '16 at 15:07
6
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How to record webcam and audio using webRTC and a server-based Peer connection
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You should definitely have a look at Kurento. It provides a WebRTC server infrastructure that allows you to record from a WebRTC feed and much more. You can also find some examples for the application you are planning here. It is really easy to add recording capabilities to tha...
SQL Update with row_number()
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DECLARE @id INT
SET @id = 0
UPDATE DESTINATAIRE_TEMP
SET @id = CODE_DEST = @id + 1
GO
try this
http://www.mssqltips.com/sqlservertip/1467/populate-a-sql-server-column-with-a-sequential-number-not-using-an-identity/
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Android - styling seek bar
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I would extract drawables and xml from Android source code and change its color to red.
Here is example how I completed this for mdpi drawables:
Custom red_scrubber_control.xml (add to res/drawable):
<selector xmlns:android="http://schemas.android.com/apk/res/and...
How to get a value of an element by name instead of ID
...uld I get the value of an element via the attribute name instead of the ID . eg if I use by id it would be $('#id').val();
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In Windows cmd, how do I prompt for user input and use the result in another command?
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Try this:
@echo off
set /p id="Enter ID: "
You can then use %id% as a parameter to another batch file like jstack %id%.
For example:
set /P id=Enter id:
jstack %id% > jstack.txt
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