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Efficiently updating database using SQLAlchemy ORM
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SQLAlchemy's ORM is meant to be used together with the SQL layer, not hide it. But you do have to keep one or two things in mind when using the ORM and plain SQL in the same transaction. Basically, from one side, ORM data modifications will only hit the database when you flush the changes from y...
Mysql - How to quit/exit from stored procedure
I have very simple question but i did't get any simple code to exit from SP using Mysql.
Can anyone share with me how to do that?
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Using an RDBMS as event sourcing storage
...h EventSource corresponds to an actual Aggregate Root.)
Table Events:
Id [uniqueidentifier] NOT NULL,
TimeStamp [datetime] NOT NULL,
Name [varchar](max) NOT NULL,
Version [varchar](max) NOT NULL,
EventSourceId [uniqueidentifier] NOT NULL,
Sequence [bigint],
Data [nva...
Getting an object from an NSSet
... think hash needs to be implemented; it would just go a lot faster if you did do that.
– fumoboy007
Aug 11 '13 at 22:17
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Is Integer Immutable
I know this is probably very stupid, but a lot of places claim that the Integer class in Java is immutable, yet the following code:
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What is the proper way to re-attach detached objects in Hibernate?
...ch detached objects to a hibernate session, although an object of the same identity MAY already exist in the session, which will cause errors.
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How to change the DataTable Column Name?
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I just tried this solution now and it works fine - it did not do any changes or wipe out the underlying column data. Maybe something else is happening in your code...
– AshesToAshes
Aug 15 '13 at 15:25
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Set ImageView width and height programmatically?
How can I set an ImageView 's width and height programmatically?
14 Answers
14
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What does $$ mean in the shell?
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In Bash $$ is the process ID, as noted in the comments it is not safe to use as a temp filename for a variety of reasons.
For temporary file names, use the mktemp command.
sh...
PHP Pass variable to next page
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HTML / HTTP is stateless, in other words, what you did / saw on the previous page, is completely unconnected with the current page. Except if you use something like sessions, cookies or GET / POST variables. Sessions and cookies are quite easy to use, with session being by far...