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What is SOA “in plain english”? [closed]
...ular, in a service-oriented architecture the parts generally don't share mutable state (global variables in a traditional program). Or if they do share state, that state is carefully locked up in a database which is itself an agent and which can easily manage multiple concurrent clients.
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Store select query's output in one array in postgres
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SELECT array_agg(column_name::TEXT)
FROM information.schema.columns
WHERE table_name = 'aean'
The other is to use an array constructor:
SELECT ARRAY(
SELECT column_name
FROM information.schema.columns
WHERE table_name = 'aean')
I'm presuming this is for plpgsql. In that case you can assign i...
How to remove empty cells in UITableView? [duplicate]
i am trying to display a simple UITableView with some data. I wish to set the static height of the UITableView so that it doesn't displays empty cells at the end of the table. how do I do that?
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Datatable vs Dataset
I currently use a DataTable to get results from a database which I can use in my code.
7 Answers
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How do you version your database schema? [closed]
... sure that schema changes are always additive. So I don't drop columns and tables, because that would zap the data and cannot be rolled back later. This way the code that uses the database can be rolled back without losing data or functionality.
I have a migration script that contains statements th...
is of a type that is invalid for use as a key column in an index
...bytes even then so the safest maximum size for your keys would be:
create table [misc_info]
(
[id] INTEGER PRIMARY KEY IDENTITY NOT NULL,
[key] nvarchar(450) UNIQUE NOT NULL,
[value] nvarchar(max) NOT NULL
)
i.e. the key can't be over 450 characters. If you can switch to varchar i...
How can I add a table of contents to a Jupyter / JupyterLab notebook?
The documentation at http://ipython.org/ipython-doc/stable/interactive/notebook.html says
10 Answers
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generate model using user:references vs user_id:integer
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Is it possible to generate a model with references of two tables
– praveenkumar
Dec 8 '16 at 6:41
Not...
How to repeat a “block” in a django template
...his in more complex scenarios where I wanted to repeat the footer row of a table a the top. And the <tr> row was rather complex.
– caram
Dec 6 '19 at 11:36
add a comment...
SQL - HAVING vs. WHERE
I have the following two tables:
8 Answers
8
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