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Factory Pattern. When to use factory methods?
...one, you need to know a lot of stuff - benefits, eligibility verification, etc. But the person hiring doesn't need to know any of this - the hiring agency handles all of that.
In the same way, using a Factory allows the consumer to create new objects without having to know the details of how they...
Why use the params keyword?
...ntees prevention of unintended values passed to Parameters after Parameter order, Compatible-Type and/or count change after Calls have been coded,
1.2. it reduces those chances after a Parameter meaning change, because the likely new identifier name reflecting the new meaning is right next to the v...
Why would anybody use C over C++? [closed]
...ot just about the compiler, but all the support tools, coverage, analysis, etc)
Your target developers are C gurus
You're writing drivers, kernels, or other low level code
You know the C++ compiler isn't good at optimizing the kind of code you need to write
Your app not only doesn't lend itself to b...
Boolean Field in Oracle
...ing
values of 0/1 (because of interoperability with JDBC's getBoolean() etc.) with a check constraint
a type of CHAR (because it uses less space than NUMBER).
Their example:
create table tbool (bool char check (bool in (0,1));
insert into tbool values(0);
insert into tbool values(1);`
...
How do I translate an ISO 8601 datetime string into a Python datetime object? [duplicate]
...u one without dashes, without colons, with a weeknumer instead of a month, etc.
– Peter
Oct 2 '13 at 16:08
2
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How to convert JSON to XML or XML to JSON?
... XML child-element. You would consume these two differently in JavaScript, etc. Different examples of XML conforming to the same schema can produce actually different JSON structures this way. You can add the attribute json:Array='true' to your element to workaround this in some (but not necessarily...
What's the Point of Multiple Redis Databases?
...y real quick because you need to monitor all of them, do upgrades/patches, etc. If you don't plan on overloading redis with high I/O, a single instance with a slave is simpler and easier to manage provided it meets your SLA.
...
upstream sent too big header while reading response header from upstream
...nt to add that in ubuntu 16.04 the nginx configuration file is located at /etc/nginx/nginx.conf and the values should go inside http {...}
– Mario
Feb 26 '18 at 17:20
...
Insert into … values ( SELECT … FROM … )
...Int, someVarChar )
SELECT table2.column1, table2.column2, 8, 'some string etc.'
FROM table2
WHERE table2.ID = 7;
I've only used this syntax with Access, SQL 2000/2005/Express, MySQL, and PostgreSQL, so those should be covered. It should also work with SQLite3.
...
What is Dependency Injection and Inversion of Control in Spring Framework?
...ow how to call my code. This is achieved using events/delegates, callbacks etc. Here the Control of flow is "Inverted".
So, instead of depending the flow of control on statically bound objects, the flow depends upon the overall object graph and the relations between different objects.
Dependency I...