I am developing an app that contains a view controller,where the user fills all the fields and when he clicks save,the data must get inserted in to the database.I am able to retrieve the primary key (id) for every reminder saved.But I am unable to insert data,as when I am trying to display it in console,it's displaying null.Please post the correct and relevant code of my requirement to save the data in to created table in database.
It's my humble request to post the code for performing an action in such a way that when I click save,the data must get inserted in to the table of database.I would be pretty glad If I can see the code for retrieval of data to display in the other controller(page) "View/Edit Reminder"...Please help me out.I tried all the ways,I have gone through 100's of solutions.
retrieved data from sqlite database and displaying it on grouped table view
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http://www.edumobile.org/iphone/iphone-programming-tutorials/adding-data-using-sqlite-for-iphone/
etc... etc... Please make me get out of this problem
Check the answer of this question:
Storing and retrieving data from sqlite database
It shows how to connect to a database, insert a new record, and retrieve an old one.
Check Out this link:-
how to insert only one username and password in sqlite database
I have explain two method first is how to read from a table and second how to write inside the database.Just before calling any of these methods you have to call the method checkandCreateDatabase.
Related
I have an issue with my access table which is linked from postgres. The table in postgres has a time column with a 'time without time zone' data type and it looks fine. However when i linked the table to Access, the same fields show the same data but have a date in front of them. It looks like this, '07/01/2023 11:33:00 AM'. I just want it to display time.
I have tried chaning the data type in postgres and relinking the table but that didnt help. I've deleted the table and created a new one and that didnt help. Whenever I try to delete the dates directly from the table in access I get an error 'Another user edited this record and saved the changes before you attempted to save your changes' and it goes back to how it was.
I have over 100 JSON files which is nested and I am trying to Load the JSON files via Data FactoryV2 into SQL Data Warehouse. I have created the Data FactoryV2 and everything seems fine the connection below seems fine and the Data Preview seems fine also.
When I run the Data Factory I get this error:
I am not sure what the issue is. I have tried to re-create the Data Factory several times.
The error message is clear enough when it says "All columns of the table must be specified...". This means that the table in the data warehouse has more columns than what you are seeing in the preview of the json file. You will need to create a table in the data warehouse with the same columns that are shown in the preview of the json files.
If you need to insert them in a table with more fields, create a "staging" table with the same columns as the json file, and then call a stored procedure to insert the content of this staging table in the corresponding table.
Hope this helped!
Friends, here is my problem: I populate a table in Xcode using SQLite database. Here is what I want - If my table has 20 rows and all of them are populated, how to update the table if new data is saved in my SQLite database? I want the new information to overwrite the old one. How to do that in Xcode, any ideas? Thanks in advance! I am not sure if the info that I provided is enough, so let me know if you want some code or other stuff.
The key to what you're doing is in the routine you furnish for your table: cellForRowAtIndexPath. Basically, you can write that routine to furnish whatever data you want it to furnish. Once you know that your data has been updated, you can cause the entire table to refresh with a call to reloadData.
I created sqlite table to store values of differnet fields as shown below.
CREATE TABLE places_table (PlaceID INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, PlaceName VARCHAR(50), PlaceAddress TEXT, PlaceLatitude REAL, PlaceLongitude REAL);
I can assign some value to PlaceLatitude and PlaceLongitude and display the values in UItable. But when I close and restart the application it displays value of these two fields as 0. Other entries (PlaceAddress, PlaceName) do not have this problem.
Can anyone please help me? Thanks for help in advance.
Are you sure first time values are coming from DB? If so then please provide code you wrote to insert data in DB.
I think you have to check condition if table exit or not .
One possibility of such behavior is that you're doing writing operation in your in-bundle sqlite3 database which is read-only. To solve this, you may need to copy the in-bundle sqlite3 database to the app sandbox when user runs the app for the first time.
If this is your case, please follow this thread: Where would you place your SQLite database file in an iPhone app?
For a Quiz game I would like to store the questions in a database containing 7 columns for the Primary key, Question, 4 answers, and the correct answer then run a random method that would pick on of the questions and populate several text fields with the data.
I would then store the value for the "correct answer" column in a variable for a if statement called later on when the user selects an answer.
I have attempted so many tutorials involving SQLite databases that I am very unclear how to do the following:
Connect my xcode project to the database (a read-only database stored in the resources folder)
Load the database into an object (or load each row at run time at each question to save memory?)
Make a method that randomly selects a row, then populates text fields with the data and stores the correct answer column into a variable.
I have been banging my head on my desk for several weeks now, so ANY help would be GREATLY appreciated!
Thanks guys!
iPhone Programming Tutorial – Creating a ToDo List Using SQLite Part 1
iPhone SDK Tutorial: Reading data from a SQLite Database
Selecting a Random Row in SQLite
SELECT * FROM table ORDER BY RANDOM() LIMIT 1;
And here is Core Data and How to select a random row if you want to give that a try