What is the error in this statement

Question

0.00/5 (No votes)

See more:

C#

create table foreign_2
( id int,
age int,
ph_no int
foreign key(id) references foreign_1(id)
on delete cascade on update set null
);

insert into foreign_2 values(1,18,8988477);
insert into foreign_2 values(2,15,8988477);
insert into foreign_2 values(3,12,1098777);
insert into foreign_2 values(4,10,225555477);
insert into foreign_2 values(5,17,87525483);

this query is not completed why?
an error occured that...
Msg 547, Level 16, State 0, Line 1
The INSERT statement conflicted with the FOREIGN KEY constraint "FK__foreign_2__ph_no__3D491139". The conflict occurred in database "master", table "dbo.foreign_1", column 'id'.
The statement has been terminated.

What I have tried:

i tried to insert the data in the foreign_2 table

Posted 15-Apr-16 21:15pm

Prachi balodhi

Updated 15-Apr-16 21:24pm

v3

Add a Solution

Comments

Karthik_Mahalingam 16-Apr-16 3:28am

make sure that the ids 1,2,3,4,5 is present in foreign_1 table

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Accepted Answer · 2016-04-15T21:24:00

The error is pretty explicit:

The INSERT statement conflicted with the FOREIGN KEY constraint

What that mean sis that you tried to insert a value into your table (specifically into the id column) which doesn't exist in the matching column in the other table (specifically, the ID column of the foreign_1 table).
You can't do that: a foreign key means "this table is related to that table" - and you can't create a row which doesn't have matching value in the column of the other table.