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How do I modify fields inside the new PostgreSQL JSON datatype?
..._build_object('<key>', '<value>')
Where <key> should be string, and <value> can be whatever type to_jsonb() accepts.
For setting a value deep in a JSON hierarchy, the jsonb_set() function can be used:
SELECT jsonb_set('{"a":[null,{"b":[]}]}', '{a,1,b,0}', jsonb '{"c":3}')
--...
How do I view the SQL generated by the Entity Framework?
... select x;
var sql = ((System.Data.Objects.ObjectQuery)query).ToTraceString();
or in EF6:
var sql = ((System.Data.Entity.Core.Objects.ObjectQuery)query)
.ToTraceString();
That will give you the SQL that was generated.
...
Update a column value, replacing part of a string
...n1.com/images/%');
relevant docs: http://dev.mysql.com/doc/refman/5.5/en/string-functions.html#function_replace
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How should the ViewModel close the form?
...everything else in your view (so, for example, you don't need to inject an extra view interface just to handle closing the window). You're welcome to make other tradeoffs, but it seems like a generally good deal to me.
– Joe White
May 6 '12 at 18:54
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How is the Linux kernel tested ?
...s changes.
There tend not to be much in the way of formal test plans, but extra testing may be asked for before features are merged into upstream trees.
As Dean pointed out, there's also some automated testing, the linux test project and the kernel autotest (good overview).
Developers will often ...
Paging with Oracle
... and java. The paging code looks like this:
public public List<Map<String, Object>> getAllProductOfferWithPagination(int pageNo, int pageElementSize, Long productOfferId, String productOfferName) {
try {
if(pageNo==1){
//do nothing
} else{
p...
Load HTML file into WebView
...
You could presumably also load it form a String if you're very adverse to using assets...(see stackoverflow.com/questions/4543349/load-local-html-in-webview)
– Joe
Apr 21 '11 at 21:36
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CASCADE DELETE just once
...hus foreign) keys. Also, the keys all have to be able to be represented in string form, but it could be written in a way that doesn't have that restriction. I use this function VERY SPARINGLY anyway, I value my data too much to enable the cascading constraints on everything.
Basically this function ...
What's the right way to decode a string that has special HTML entities in it? [duplicate]
...ar num = parseInt(numStr, 10); // read num as normal number
return String.fromCharCode(num);
});
}
[Edit]
Note: this would only work for numeric html-entities, and not stuff like &oring;.
[Edit 2]
Fixed the function (some typos), test here: http://jsfiddle.net/Be2Bd/1/
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How do I find out if the GPS of an Android device is enabled
...n to the user if you want.
Check if location providers are available
String provider = Settings.Secure.getString(getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
if(provider != null){
Log.v(TAG, " Location providers: "+provider);
//Start searching for loca...