sqlite command in iOS - ios

Question

Here I am using Sqlite Database for my Application, and my Database Table contains the column keyjson and values in rows are like below
{"filename":"21-01-3-02","label":""}
{"filename":"02-C-4-1","label":"17"}
{"filename":"14-L-3-2","label":"Nord Est"}
{"filename":"02-Z-5-1NouvelleIndustrieSectionValton","label":"1810"}
json data sas string
now I need to particular string that like
02
1
2
1NouvelleIndustrieSectionValton
from that particular column .
can anyone know the query for it,
Please replay me
&regards

Answer 1

You can do that without SQLite query. First, convert your JSON to a NSMutableArray :
NSData *data = [yourJsonString dataUsingEncoding:NSUTF8StringEncoding];
NSMutableArray *res = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
Then you can parse it easily as follow :
NSMutableArray *finalResult = [NSMutableArray array];
NSString *filename;
for (id e in res){
filename = [e objectForKey:#"filename"];
[finalResult addObject:[[filename componentsSeparatedByString:#"-"] lastObject]];
}
// Here we go, finalResult contains the values you want
The problem is that your "JSON" is not valid JSON. It should look like this if you want it works :
[
{
"filename": "21-01-3-02",
"label": ""
},
{
"filename": "02-C-4-1",
"label": "17"
},
{
"filename": "14-L-3-2",
"label": "Nord Est"
},
{
"filename": "02-Z-5-1NouvelleIndustrieSectionValton",
"label": "1810"
}
]