check-constraints Questions
9
Solved
I'm looking at the AdventureWorks sample database for SQL Server 2008, and I see in their creation scripts that they tend to use the following:
ALTER TABLE [Production].[ProductCostHistory] WITH C...
Rootstock asked 9/2, 2009 at 21:2
4
Solved
Given a PostgreSQL table named requests with a column named status and a constraint like this:
ALTER TABLE requests ADD CONSTRAINT allowed_status_types
CHECK (status IN (
'pending', -- request h...
Rorry asked 27/1, 2016 at 0:57
3
Solved
I'm tumbled with a problem!
I've set up my first check constraint using MySQL, but unfortunately I'm having a problem. When inserting a row that should fail the test, the row is inserted anyway.
...
Britain asked 12/6, 2010 at 1:20
2
Solved
Can I make SQL sub queries in Check constraint ?
I've a post table with columns id, owner
I've another table action with columns user_id, post_id
Table user with columns id
post_id -> post.id ...
Spoilage asked 16/4, 2012 at 17:55
3
Solved
I tried to insert some data in a database with postgresql but still showing the same message:
ERROR: new row for relation "empleados" violates check constraint
"ck_empleados_documento" DETAIL: ...
Phylum asked 28/9, 2017 at 3:6
3
Solved
I've a simple table in sql server 2005 with 3 columns: DateStart, DateEnd and Value. I tried to set a "table check constraint" to avoid inserting overlapping records. For instance if in such table ...
Animation asked 20/8, 2012 at 10:6
2
Solved
I have a table with three fields, say a, b, c. I would like to add a constraint ensuring that if a is not null, then also b and c are not null. I have done that using following SQL
ALTER TABLE sam...
Conserve asked 13/8, 2015 at 8:45
6
Solved
Constraint for phone number to be of 7 digits. How to check if it is of 7 digits in SQL Server?
CREATE TABLE Customer
(
C_ID INT NOT NULL IDENTITY(1,1) PRIMARY KEY,
C_Name VARCHAR(255) NOT NULL,...
Derick asked 16/3, 2016 at 20:4
5
Solved
This is probably a simple answer but I can't find it. I have a table with a column of integers and I want to ensure that when a row is inserted that the value in this column is greater than zero. I...
Gosselin asked 15/10, 2008 at 15:5
6
Solved
While subclassing db.models.Model, sometimes it's essential to add extra checks/constraints.
For example, I have an Event model with start_date and end_date: I want to add validation into the field...
Endocardial asked 17/2, 2010 at 13:54
3
Solved
I'm creating a database in db2 and I want to add a constrain to validate whether the user inserting a valid email address, that contain %@%.% . Without luck...any advice?
Daryn asked 3/10, 2013 at 8:34
1
Solved
I'm on MySQL 8 trying to add a check constraint:
ALTER TABLE `table` ADD CHECK (
(`column_a` IS NULL AND `column_b` IS NOT NULL) OR
(`column_a` IS NOT NULL AND `column_b` IS NULL)
);
but I kee...
Macaroni asked 22/4, 2020 at 9:43
1
Solved
Lets say I have a table like this:
CREATE TABLE IF NOT EXISTS
newbook_mast (book_id varchar(15) NOT NULL UNIQUE,
book_name varchar(50) ,
isbn_no varchar(15) NOT NULL UNIQUE ,
cate_id varchar(...
Fillander asked 8/4, 2020 at 17:46
1
Solved
I've got these models:
class Container(models.Model):
...
class Meta:
constraints = [
models.CheckConstraint(
check=~Q(elements=None),
name='container_must_have_elements'
),
]
class Eleme...
Adamec asked 11/2, 2020 at 16:48
2
Solved
I'm using Oracle 11g, and trying to create a table define constraints on the creation.
I was trying to add check constraint to validate some information (like e-mail address, phone number, etc...)...
Nympho asked 1/10, 2011 at 16:38
5
Solved
I am having trouble with this table
CREATE TABLE `Participants` (
`meetid` int(11) NOT NULL,
`pid` varchar(15) NOT NULL,
`status` char(1) DEFAULT NULL,
PRIMARY KEY (`meetid`,`pid`),
CONSTRAIN...
Watson asked 22/9, 2011 at 22:4
4
Solved
I have a Django model which looks like this:
class Dummy(models.Model):
...
system = models.CharField(max_length=16)
I want system never to be empty or to contain whitespace.
I know how to us...
Bowne asked 20/4, 2018 at 9:9
2
Solved
I have a table of Records
ID
EntityID
Value
Status
and a table of Entities
ID
Col1
Col2
CurrentRecordID
CurrentRecordID should be the Record tied to the Entity with a Status of 0
I have two...
Mineraloid asked 7/6, 2017 at 19:29
1
How is it possible to know, which data annotations are supported by Spring JPA?
For example, is @Min supported?
@Min(value = 0)
private double calories;
Anyway, how can one declare CHECK cons...
Euler asked 22/12, 2015 at 17:48
8
First I created a table like
CREATE TABLE Customer (
SD integer CHECK (SD > 0),
Last_Name varchar (30),
First_Name varchar(30)
);
and then inserted values in that table
INSERT INTO Custom...
Docent asked 22/1, 2010 at 6:33
1
Solved
I would like to create a more specific error message for Postgres CHECK IN violations. So for example a violation of the following CHECK constraint on a column:
management_zone varchar(15) NOT NUL...
Andy asked 23/11, 2018 at 14:26
1
Solved
Is there a way to make a column have a contraint of exactly so many characters? I have a string of 152 characters, and want the column to only accept values that are 152 in length, not 151, not 153...
Dualism asked 2/10, 2018 at 13:25
4
Solved
I have a table of users eg:
create table "user" (
id serial primary key,
name text not null,
superuser boolean not null default false
);
and a table with jobs:
create table job (
id serial ...
Mccown asked 23/4, 2014 at 7:18
2
Solved
Is there anyway to create a table with multiple columns and 2 of them should never be null in same record.
for example, I need to make C and D somehow that each one of them could be null if the ot...
Uhhuh asked 18/4, 2018 at 14:37
1
Solved
I'm using SQLite, which doesn't support adding a constraint to an existing table.
So I can't do something like this (just as an example):
ALTER TABLE [Customer]
ADD CONSTRAINT specify_either_phon...
Calmas asked 23/3, 2017 at 6:52
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