I am trying to create a fantasy cricket team of 11 players from a large list of players. For the team, I have basic minimum and maximum requirements for each type of player. I have assigned values like this: $min_wicket_keeper…
In my Ecto schema, I have a User who has_many Items. An item has a boolean field active: User module: schema "users" do field :name, :string has_many :items, Item end Item module: schema "items" do field(:active, :boolean) belongs_to(:user, User) end…
I have a set of sql statements, CREATE TABLE PRICING( CodeVillage INT, TypeCabin INT, CodeSeason CHAR(2), WeekPrice INT, PRIMARY KEY(CodeVillage, TypeCabin, CodeSeason) ); CREATE TABLE SEASON( CodeSeason CHAR(2) PRIMARY KEY, NameSeason VARCHAR(20), CONSTRAINT Fk_Pricing_CodeSeason Foreign KEY (CodeSeason) REFERENCES PRICING(CodeSeason) );…
I'm working with PostgreSQL and I want to enforce a particular column to be unique. But this table has some legacy data in which duplicate of the column are there and they have to be retained unmodified. So when I…
So I have a textfield that is positionned in the center of a Container. My problem is the more I decrease the height of my screen the more the text of the textfiled goes out of the boundaries. I wrapped…
Let's say I have a database with columns name, last_name and type They're all strings, though type can only be TYPE_A, TYPE_B or TYPE_C I want a row in the database to be Unique when name and last_name already exist.…
In PostgreSQL I have a "cars" table (id, model, color) How can I constrain the input color based on the model? For example: if AA model then the color must be blue, red or black if BB model then the…
This question is being updated every time I act on someone's suggestion here. Unfortunately though, non of the minor housekeeping suggestions helped enough, so the problem remains. In the nutshell: I have a viewController (secondVC) with a tableView in it…
I am trying to rewrite a Postgres schema to fit the MySQL (8.0.32) dialect. As you know, MySQL does not support partial indexes. In the following situation, there exists an index that enforces unique data on customer_group.name only when deleted_at…
I have tables variable and variable_variable. The last one holds 2 columns: variable_id_from variable_id_from Look at the schema below: If variable_variable has row with values {variable_id_from = 1, variable_id_to = 2}, it means that variable with id = 1 references…