insert-update

I'm trying to insert data through my java code to the owl file which is loaded into Fuseki server. Update query doesn't give any error message. But owl file doesn't update.I'm using jena library and implemented using java code. What is the wrong in my code? public boolean addLecturerTriples(String fName, String lName, String id, String module) { try{ ArrayList<String> subject = new ArrayList<String>(); ArrayList<String> predicate = new ArrayList<String>(); ArrayList<String> object = new ArrayList<String>(); subject.add("<http://people.brunel.ac.uk/~csstnns/university.owl#"+fName+">");

[newVehicle setValue: _txtFieldVehicleNumber.text forKey:@"number"]; [newVehicle setValue: lblFuelType.text forKey:@"fueltype"]; [newVehicle setValue: lblFuelUnit.text forKey:@"fuelunit"]; [newVehicle setValue: lblDistanceUnit.text forKey:@"distanceunit"]; I want to update my core data entity named "Vehicle", for that entity I have several attributes and I want to update some of them but not all when I select particular attribute from the entity. So what should I do ?? you can do the following (approximate code. Implement error handling and check syntax). NSFetchRequest *fetchRequest=

I use PostgreSQL 9.1.2 and I have a basic table as below, where I have the Survival status of an entry as a boolean (Survival) and also in number of days (Survival(Days)) . I have manually added a new column named 1-yr Survival and now I want to fill in the values of this column for each entry in the table, conditioned on that entry's Survival and Survival (Days) column values. Once , completed the database table would look something like this: Survival Survival(Days) 1-yr Survival ---------- -------------- ------------- Dead 200 NO Alive - YES Dead 1200 YES The pseudo code to input the

I have following data structure: db.objects { "_id" : 1, "name" : "object name", "type" : "rectangle", "area" : { "position_x1" : 0, "position_y1" : 0, "position_x2" : 0, "position_y2" : 0 }, "dimension" : { "width" : 0, "height" : 0 } } I want to replace/update "area" and "dimension" separately for a document in objects collection with "_id" = 1. [?] Please let me know how can i achieve using MongoDB C# driver. This is a very simple use of the $set operator. So essentially the update form is: db.objects.update( { "_id": 1 }, { "$set": { "area": { /* all of your object properties */ },

I am using Parse as my backend for one of my native iOS app. I am not able to update a record on a table in Parse. First I query the object that I want to update it. So, "objects" array returns 1 record but when I want to update it I get the following error; "object not found for update (Code: 101, Version: 1.2.16)" So what do you think I can not update a record in Parse? (Below is my code) Thanks, E. PFQuery *query = [PFQuery queryWithClassName:@"askedFriends"]; [query whereKey:@"questionID" equalTo:aqDt.questionID]; [query whereKey:@"fbID" equalTo:FbId]; [query

I am working on a large MySQL database and I need to improve INSERT performance on a specific table. This one contains about 200 Millions rows and its structure is as follows: (a little premise: I am not a database expert, so the code I've written could be based on wrong foundations. Please help me to understand my mistakes :) ) CREATE TABLE IF NOT EXISTS items ( id INT NOT NULL AUTO_INCREMENT, name VARCHAR(200) NOT NULL, key VARCHAR(10) NOT NULL, busy TINYINT(1) NOT NULL DEFAULT 1, created_at DATETIME NOT NULL, updated_at DATETIME NOT NULL, PRIMARY KEY (id, name), UNIQUE KEY name_key_unique