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Get the latest record from mongodb collection
...wered Feb 2 '14 at 21:28
dark_rubydark_ruby
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sqlalchemy flush() and get inserted id?
...
Thanks for everybody. I solved my problem by modifying the column mapping. For me, autoincrement=True is required.
origin:
id = Column('ID', Integer, primary_key=True, nullable=False)
after modified:
id = Column('ID', Integer, primary_key=True, autoincrement=Tr...
What's the difference between identifying and non-identifying relationships?
...child table with respect to States. But a row in Person is not identified by its state attribute. I.e. state is not part of the primary key of Person.
A non-identifying relationship can be optional or mandatory, which means the foreign key column allows NULL or disallows NULL, respectively.
S...
Patterns for handling batch operations in REST web services?
...ut that updating several attributes on a single resource is nicely covered by PATCH - no need for creativity in this case.
– LB2
Dec 2 '16 at 16:17
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How to find serial number of Android device?
...gt;=2.3. Only 2.2 has the problems mentioned in the post.
Several devices by several manufacturers are affected by the ANDROID_ID bug in 2.2.
As far as I've been able to determine, all affected devices have the same ANDROID_ID, which is 9774d56d682e549c. Which is also the same device id reported b...
SQL Update with row_number()
... = x.New_CODE_DEST
FROM (
SELECT CODE_DEST, ROW_NUMBER() OVER (ORDER BY [RS_NOM]) AS New_CODE_DEST
FROM DESTINATAIRE_TEMP
) x
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PHP Session Fixation / Hijacking
...he session identifier of a session for a user. Typically in PHP it's done by giving them a url like http://www.example.com/index...?session_name=sessionid. Once the attacker gives the url to the client, the attack is the same as a session hijacking attack.
There are a few ways to prevent session f...
PostgreSQL Autoincrement
...OT NULL DEFAULT nextval('user_id_seq')
);
ALTER SEQUENCE user_id_seq OWNED BY user.user_id;
Better to use your own data type, rather than user serial data type.
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How to efficiently build a tree from a flat structure?
... informal notation) O(3N), where as an O(1N) solution is easily achievable by either instantiating partial Nodes for non 'traversed' parents OR by keeping a secondary look-up tables for children of non-instantiated parents. Likely does not matter for most real-world uses, but it could be significant...
SQL Server query to find all permissions/access for all users in a database
...NION
--List all access provisioned to the public role, which everyone gets by default
SELECT
[UserName] = '{All Users}',
[UserType] = '{All Users}',
[DatabaseUserName] = '{All Users}',
[Role] = roleprinc.[name],
[PermissionType] = perm.[permission_name],
...