Save and retrive NSMutableArray in sqlite in ios

Question

I have a NSMutableArray of NSDictionary which I want to store in sqlite in iOS. I tried:

in .h

@property (nonatomic,retain) NSMutableArray *mutArrayOfDict;

At sqlite insert:

NSData *wrtData = [NSKeyedArchiver archivedDataWithRootObject:mutArrayOfDict];
sqlite3_bind_blob(statement, 5, wrtData, -1, SQLITE_TRANSIENT);

At sqlite read:

blob = sqlite3_column_blob(statement, 5);
bytes = sqlite3_column_bytes(statement, 5);
readData = [NSData dataWithBytes:blob length:bytes];

mutArrayOfDict = [NSKeyedUnarchiver unarchiveObjectWithData:readData]; //Exception

Exception

[NSKeyedUnarchiver initForReadingWithData:]: incomprehensible archive....

I tried:

[NSPropertyListSerialization propertyListFromData:readData
                                 mutabilityOption:NSPropertyListImmutable
                                           format:NULL
                                 errorDescription:nil];

And this inserts a null at 0 index of mutArrayOfDict. Please help!!

Answer 1

soo if I get you right you want to populate a sqlite table from a nsmutablearray so why not do this ?

How to add nsmutable array into sqlite database table

for (int i = 0; i < [mutArray count]; i++)
    {
       NSString *string = [mutArray objectAtIndex:i];
       // insert query
       insert into table_name ('string') values(column_name);
    }

//iUser