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What happens with constraints when a view is removed
The question I have is simple but I couldn't find any information in the documentation.
6 Answers
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Foreign Key to non-primary key
I have a table which holds data, and one of those rows needs to exist in another table. So, I want a foreign key to maintain referential integrity.
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How to raise a ValueError?
I have this code which finds the largest index of a specific character in a string, however I would like it to raise a ValueError when the specified character does not occur in a string.
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Getting a random value from a JavaScript array
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24 Answers
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AngularJS ng-if with multiple conditions
I'd like to know if it's possible to have something like this:
5 Answers
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How do I clone a github project to run locally?
I am trying to follow this railscast tutorial for authlogic - and it points to the source here -
4 Answers
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How to determine whether a Pandas Column contains a particular value
I am trying to determine whether there is an entry in a Pandas column that has a particular value. I tried to do this with if x in df['id'] . I thought this was working, except when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data...
How do I embed a single file from a GitHub gist with the new gist interface?
The new GitHub Gist interface has one embed snippet for the entire gist which embeds all files in the gist. The old interface had embed code for each file in the gist. Anyone know if there's a trick to embed a single file?
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How to remove the last character from a string?
I want to remove the last character from a string. I've tried doing this:
32 Answers
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Multiple columns index when using the declarative ORM extension of sqlalchemy
According to the documentation and the comments in the sqlalchemy.Column class, we should use the class sqlalchemy.schema.Index to specify an index that contains multiple columns.
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