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SQLAlchemy IN clause
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How about
session.query(MyUserClass).filter(MyUserClass.id.in_((123,456))).all()
edit: Without the ORM, it would be
session.execute(
select(
[MyUserTable.c.id, MyUserTable.c.name],
MyUserTable.c.id.in_((123, 456))
)
).fetchall()
select() takes two parameters...
multi-layer perceptron (MLP) architecture: criteria for choosing number of hidden layers and size of
If we have 10 eigenvectors then we can have 10 neural nodes in input layer.If we have 5 output classes then we can have 5 nodes in output layer.But what is the criteria for choosing number of hidden layer in a MLP and how many neural nodes in 1 hidden layer?
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codestyle; put javadoc before or after annotation?
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193
Before the annotation, since the annotation is code that "belongs" to the class.
See examples ...
Rails: create on has_one association
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123
First of all, here is how to do what you want:
@user = current_user
@shop = Shop.create(param...
Negation in Python
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231
The negation operator in Python is not. Therefore just replace your ! with not.
For your exampl...
Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
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18 Answers
18
Active
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UICollectionView Set number of columns
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17 Answers
17
Active
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Extract a substring from a string in Ruby using a regular expression
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135
String1.scan(/<([^>]*)>/).last.first
scan creates an array which, for each <item...
postgresql - add boolean column to table set default
...ULT FALSE;
UPDATE: following is only true for versions before postgresql 11.
As Craig mentioned on filled tables it is more efficient to split it into steps:
ALTER TABLE users ADD COLUMN priv_user BOOLEAN;
UPDATE users SET priv_user = 'f';
ALTER TABLE users ALTER COLUMN priv_user SET NOT NULL;
A...
Is $(document).ready necessary?
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127
Is $(document).ready necessary?
no
if you've placed all your scripts right before the &l...