I have implemented this code to add a check constraint after creating the table ALTER TABLE recruitment_data.candidate_experiences ADD CONSTRAINT chk_experience_dates CHECK ( ...

I want to make sure, that a column doesn't have a value that exists in another column of another table. It is kind of like a negative foreign key check, if you will. However adding a constraint doesn'...

I Have 3 tables ProdVariant, Variant, VariantValues. ProductVariant ---------------------------- ProductVariantID PK ProductID FK NOT NULL VariantID FK NULL ...

Adding constraint using alter table dok add constraint dok_during_exclude EXCLUDE USING gist (pais2obj WITH =, during WITH &&) throws error ERROR: relation "dok_during_exclude" ...

CREATE TABLE Oracle_All_DataTypes ( ID NUMBER(10) PRIMARY KEY, -- Unique identifier FirstName VARCHAR2(50) NOT NULL, -- First name must be provided LastName VARCHAR2(50), -- Last name is ...

I have 2 SQLite tables, users and transactions where a "transaction" happens between exactly 2 users. A short example would be: CREATE TABLE users( id INTEGER PRIMARY KEY ASC ); CREATE ...

In PostgreSQL, I want a check constraint if column "Art" (this never is NULL) is == 'Typ 3' and three other columns either all NULL or all NOT NULL. My code fails for the first record having ...

Can check constraint be used instead of pessimistic locks? Consider there is following table in SQL Server: create table Balances( id int, userId int, balance money) If more than 1 thread try to ...

I need a way to create either a validator or a constraint at model level to evaluate two or more fields to be able to be null/blank only if all of them are null/blank at the same time. For example, in ...

I need to write test for a custom field with access to the database. The code is the following : class TestMyField (TestCase): def SetUpClass(cls): super().setUpClass() class MyModel(...

A personal identity codes consist of a string of numbers that indicates the individual’s date of birth, an individualized string, and a control character. Example: 150600A905P • 150600 = Date of birth ...

I have two variables in Stata which are string (MAIDCW1 and strboth). I would like to check for each observation whether the value of MAIDCW1 exists somewhere in the whole of strboth. If this value ...

This is the Table in SQlite: CREATE TABLE document( id TEXT NOT NULL, data TEXT NOT NULL, CHECK ( json_type(data, '$.documentLines.title') IN ('text') ), PRIMARY KEY (id) ) STRICT; This ...

I want to include a check constraint for my model in my members app where the sex field should be male, female or null. Here is my code: from django.db import models from django.db.models import ...

We don't have application running on server, so all the logic need to be done on Bigquery. I know Microsoft SQL Server have check constraint like: CREATE TABLE MyCleanJapanClient ( Phone varchar(...