According to tests both SQL give the same result. alter table public.company add constraint company_name_key unique ("name") vs. alter table public.company add unique ("name"); PostgreSQL (ver. 12.16)
I have three tables 1. Account 2. dept and 3. managers In the managers table I need to add both account key and dept key as foreign key but one will null and other will have value, means if inserted…
I am using Xcode 14.2 with both a SwiftUI file as well as an Objective-C file. It uses NotificationCenter to change my text and labels that I have within my SwiftUI. Part of my text (fourLinesText) is being cut off…
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…