I need to store images that are captured using “image picker” in a SQL server database now, I know that the images should be stored in a “VARBINARY” datatype. I tried to convert the XFile “image” that I got from the “ImagePicker()” to VARBINARY and these are the…
Tag: flutter
How do I select and count records less than 1 year old?
I’m using sqflite in my Flutter application. In this example, date is the actual date(10.06.2021) and DATUM is the datafield in the DB. I keep getting this syntax error: E/SQLiteLog(30657): (1) near “.2021”: syntax error in “SELECT COUNT (*) FROM Shisha_table WHERE (YEAR(10.06.2021) &#…
How to save date in SQLite flutter database?
I am making an app in which users can fill a form and can save their financial transaction details for every transaction they make, for this, I want to add a date as well and also I want to fetch data using the date as well. I am creating my database as follows: I am mapping as follows: I have
Flutter Insert data into the database sqflite
I need to insert the data one at a time and add it to the end of the string, but what happens is that the way I’m doing is overwriting the data Output: This is my SQL: Output SQL: I need it to be like this: Answer According to my comment, use 3 tables : RECEIPTS id nameReceipt descReceipt 1
SQL Statment fails to run with Syntax errors using Flutter/Dart and PostgreSql 12, even though exact same query runs to the same db from python
Hi Flutter/Dart/PostgreSQL noob here; I have an SQL statement which is running fine from a python/Flask application, I am using some variables within it which are added in at runtime to the statement before it is sent to the db.This is the python version; As I said this works fine apologises if I have not add…
How can the same function be provided without using the row_number() function in sqlite?
The query below is working perfectly well if the user’s phone supports sqlite version 3.25.0 or higher. Otherwise, as you can guess, the query doesn’t work. How can I transform the code, without using the row_number () function? The database’s ER diagram: The expected result: Answer I would …
How to stop class database file getting created multiple times when using flutter_moor?
Whenever I am adding a new row to my database in my flutter app, I am getting this error : WARNING (moor): It looks like you’ve created the database classAppDatabase multiple times. When these two databases use the same QueryExecutor, race conditions will ocur and might corrupt the database. I read diff…
How to use relational database with flutter [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Stack Overflow. Closed 1 year ago. Improve this question I’m currently making an app using Flutter. Now I really want the da…
Creating Flutter Web Server that connects to an SQL server
I want to create a Flutter web server that has an SQL connection. Just like in PHP we can connect to the SQL server like this: // Connecting to DB $conn = new mysqli($servername, $username, $password, …
Can I do a case-based foreign key command (either cascade or set null)?
I would like to give the user the option when he is deleting an item in the parent table, to either cascade delete or set null to the items in the child table that references the foreign key, is that possible within SQLITE? or do I have to do this within my code? These are the commands I currently use