This is relational diagram of database I created: I need to insert total price in Orders.Total_Price column by multiplying the Pizza.Pizza_Price value with Ord
I am currently building a Django app that requires two different user types and I know that storing authentication information across multiple models/tables is
I'm trying to put a foreign key in knex migration. "age_group_id"(primary key of the "agegroups" table) is the foreign key of the "users" table. So, I have put
Parent: public class Currency { [DatabaseGenerated(DatabaseGeneratedOption.Identity)] public int Id { get; set; } public string? Name { get; set; }
Can add_foreign_key add a 'NOT VALID' parameter to the ALTER TABLE command? (Postgres, if it mattters) I have a foreign key between two very large tables. I ne
I have a migration on Laravel for table pasien like this : public function up() { Schema::create('pasien', function (Blueprint $table) { $table->
I'm new in Django. I have 2 class tech_system adn equiptment in models.py class tech_system(models.Model): id_tech_system = models.BigAutoField(db_column='I
Simple question: I'm new to Laravel. I have this migration file: Schema::create('lists', function(Blueprint $table) { $table->increments('id'); $ta
Hy please am new to Django,I have a childmodel(relationship) referencing a parent model(Profile) through a foreign key. I want to get the relationship status of
Using migrations, I need to add a new field (a foreign key) to a model. I know it can be done with: migrations.AddField( model_name='MyModel',
I'm working on adding Django 2.0 support to the django-pagetree library. During automated testing, using an sqlite in-memory database, I'm getting a bunch of er
I've got two foreign keys in a table. Let's assume that table is called News and has foreign keys updatedById and createdById, both of which point to userId in
I found some threads about the error. But all the solutions doesn't work for me. I created 2 tables a user table and one for articles. Now I want to store the