|System table to extract foreign keys in sap hana|
Check system table REFERENTIAL_CONSTRAINTS:
select * from "REFERENTIAL_CONSTRAINTS"
That's where foreign keys are listed - just as it can be found in the
|Windows Phone 8.1 override back button on a certain page|
Consider hard if this is what you really want to do. A more user
friendly flow would be to save the data and let the user back out of
the app and return. Also consider what happens if the user exits in a
different way such as the window or camera button.
That said, the code you list will work if that's the only navigation
handling that you have (try it in the BlankPage template). I suspect
|Load mask for Jasny bootstrap plugin|
Any characters after "?" are optional
<input class="form-control" id="txtEIN" type="text"
|Spring WebSocket is not send queue-suffix after connection|
I am using the annotation-based configs and messaging classes. I'm
also using SpringBoot 1.2.0.RC1 which pulls in Spring 4.1.2.RELEASE.
So, given that I set up my websockets & STOMP as follows:
public class WebSocketProdConfig extends
public void registerStompEndpoints(StompEndpointRegi
|h:selectOneMenu with EnumConverter are updating to null value|
The problem persisted until I used the property ajaxSingle="true"
(default is 'false'), as shown below:
<a4j:support event="onchange" oncomplete="dadosAlterados(true)"
reRender="otherPanel" ajaxSingle="true" />
|Pass by-reference in Promela|
Put your variables into an array and then pass around the array index.
// A type to identify VARs; we pass these values to simulate 'by
#define var_id byte
// A VAR
bit val; // The var's value
#define VAR_COUNT 3
// allocate the VARs
var_struct var_array [VAR_COUNT];
// Access the value for VAR (based on var_t
#define VAR_VAL(id) var_
|how to understand the browser-side vs. client-side of atom-shell|
A regular Node.js application has the concept of "server-side" code
and "client-side" code. There is code that you write that is to be
executed using Node.js on your server. This could be an express app,
or even it could be a basic API that simply serves JSON. The
counter-part to this is "client-side" code which is embedded and run
on the web page after it is loaded up by the client (usually a web
|how to backup Cloudant to mass low cost storage such as AWS Glacier?|
Here are the approximate steps:
a server running CouchDB (e.g. in EC2)
continuous replication from Cloudant --> CouchDB
periodic (e.g. nightly) cron job to
copy the relevant .couch file over somewhere
zip it up
use AWS command-line tools to put the zipped file on S3
use AWS command-line tools to send that S3 file to Glacier
Things to remember:
Glacier keeps everything unless you say "kil
|How to split a table by two columns in FastReport?|
FastReport has two ways to make a column report.
You already discovered one of them "band columns" - this method prints
band from left to right and then down.
The second way is a page columns.
With Page column FR prints band till the end of the page and then
moves to next column. I think this method exactly what you are looking
To make a page columns just double click on the page in the rep