The INSERT statement conflicted with the FOREIGN KEY constraint__ [duplicate] - sql

I am getting the following error. Could you please help me?
Msg 547, Level 16, State 0, Line 1
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Sup_Item_Sup_Item_Cat". The conflict occurred in database "dev_bo", table "dbo.Sup_Item_Cat". The statement has been terminated.
Code:
insert into sup_item (supplier_id, sup_item_id, name, sup_item_cat_id,
status_code, last_modified_user_id, last_modified_timestamp, client_id)
values (10162425, 10, 'jaiso', '123123',
'a', '12', '2010-12-12', '1062425')
The last column client_id is causing the error. I tried to put the value which already exists in the dbo.Sup_Item_Cat into the column, corresponding to the sup_item.. but no joy :-(


In your table dbo.Sup_Item_Cat, it has a foreign key reference to another table. The way a FK works is it cannot have a value in that column that is not also in the primary key column of the referenced table.
If you have SQL Server Management Studio, open it up and sp_help 'dbo.Sup_Item_Cat'. See which column that FK is on, and which column of which table it references. You're inserting some bad data.
Let me know if you need anything explained better!


I had this issue myself, regarding the error message that is received trying to populate a foreign key field. I ended up on this page in hopes of finding the answer. The checked answer on this page is indeed the correct one, unfortunately I feel that the answer is a bit incomplete for people not as familiar with SQL. I am fairly apt at writing code but SQL queries are new to me as well as building database tables.
Despite the checked answer being correct:
Mike M wrote-
"The way a FK works is it cannot have a value in that column that is
not also in the primary key column of the referenced table."
What is missing from this answer is simply;
You must build the table containing the Primary Key first.
Another way to say it is;
You must Insert Data into the parent table, containing the Primary
Key, before attempting to insert data into the child table containing
the Foreign Key.
In short, many of the tutorials seem to be glazing over this fact so that if you were to try on your own and didn't realize there was an order of operations, then you would get this error. Naturally after adding the primary key data, your foreign key data in the child table must conform to the primary key field in the parent table, otherwise, you will still get this error.
If anyone read down this far. I hope this helped make the checked answer more clear. I know there are some of you who may feel that this sort of thing is pretty straight-forward and that opening a book would have answered this question before it was posted, but the truth is that not everyone learns in the same way.


You are trying to insert a record with a value in the foreign key column that doesn't exist in the foreign table.
For example: If you have Books and Authors tables where Books has a foreign key constraint on the Authors table and you try to insert a book record for which there is no author record.


You'll need to post your statement for more clarification. But...
That error means that the table you are inserting data into has a foreign key relationship with another table. Before data can be inserted, the value in the foreign key field must exist in the other table first.


The problem is not with client_id from what I can see. It looks more like the problem is with the 4th column, sup_item_cat_id
I would run
sp_helpconstraint sup_item
and pay attention to the constraint_keys column returned for the foreign key FK_Sup_Item_Sup_Item_Cat to confirm which column is the actual problem, but I am pretty sure it is not the one you are trying to fix. Besides '123123' looks suspect as well.


Something I found was that all the fields have to match EXACTLY.
For example, sending 'cat dog' is not the same as sending 'catdog'.
What I did to troubleshoot this was to script out the FK code from the table I was inserting data into, take note of the "Foreign Key" that had the constraints (in my case there were 2) and make sure those 2 fields values matched EXACTLY as they were in the table that was throwing the FK Constraint error.
Once I fixed the 2 fields giving my problems, life was good!
If you need a better explanation, let me know.


I ran into this problem when my insert value fields contained tabs and spaces that were not obvious to the naked eye. I had created my value list in Excel, copied, and pasted it to SQL, and run queries to find non-matches on my FK fields.
The match queries did not detect there were tabs and spaces in my FK field, but the INSERT did recognize them and it continued to generate the error.
I tested again by copying the content of the FK field in one record and pasting it into the insert query. When that record also failed, I looked closer at the data and finally detected the tabs/spaces.
Once I cleaned removed tabs/spaces, my issue was resolved. Hope this helps someone!


Double check the fields in the relationship the foreign key is defined for. SQL Server Management Studio may not have had the fields you wanted selected when you defined the relationship. This has burned me in the past.


run sp_helpconstraint
pay ATTENTION to the constraint_keys column returned for the foreign key


I had the same problem when I used code-first migrations to build my database for an MVC 5 application. I eventually found the seed method in my configuration.cs file to be causing the issue. My seed method was creating a table entry for the table containing the foreign key before creating the entry with the matching primary key.


Parent table data missing causes the problem.
In your problem non availability of data in "dbo.Sup_Item_Cat" causes the problem


I also got the same error in my SQL Code, This solution works for me,
Check the data in Primary Table May be you are entering a column value which is not present in the primary key column.


The problem was reproducible and intermittent for me using mybatis.
I'm sure I had correct DB configuration (PK, FK, auto increment etc)
I'm sure I had correct order of insertions (parent records first), in debug I could see parent record inserted with respective PK and just after that next statement failed with inserting child record with correct FK inside.
The problem was fixed by for reseeding identity with
DBCC CHECKIDENT ('schema.customer', RESEED, 0);
DBCC CHECKIDENT ('schema.account', RESEED, 0);
Exactly the same code that failed before started to work.
I would like somebody to explain me what was causing the issue.


In my case, I was inserting the values into the child table in the wrong order:
For the table with 2 columns: column1 and column2, I got this error when I mistakenly entered:
INSERT INTO Table VALUES('column2_value', 'column1_value');
The error was resolved when I used the below format:-
INSERT INTO Table (column2, column1) VALUES('column2_value', 'column1_value');


If your FK column table should contain that FK value as a primary key Value then data will be inserted.

Related

Insert data into a table with primary key(by skipping the duplicate row)

I have a table with primary Key. When I am running an Insert statement it gives an errror where it finds a duplicate row and stops the insertion. I want to Insert the data into the table by skipping the duplicate row. Can anyone please suggest me how to do this.
Thanks

You haven't tagged which engine you are using so I don't know if this will work for you.
The MERGE statement combines an INSERT/UPDATE/DELETE into a single unit of work.

Your table primary key column has to be of AUTO_INCREMENT so that you don't have to insert that value by yourself, it will take automatically.
And also it will be the best practise for you. Because each time you have to insert the unique value so, on behalf of you the database will take care of it.

If you work with MySQL database then your primary key column has to be of AUTO_INCREMENT type and MySQL will automatically insert new value for PK. If you work with ORACLE, you have to use SEQUENCE as different method which will increment and give you new value for PK.

Error: The INSERT statement conflicted with the FOREIGN KEY constraint

A business user requested that I change a dropdown list to a textbox for creating records. The dropdown list is what was created by default for relating to tables in my database. As requested I made the change and replaced the dropdown list with an #Html.EditorFor element. I now get this error message when I try to create records. Is there a possible solution that can fix this error? There aren't any syntax errors that stop me from compiling my code. This error occurs at runtime.

This means that your forward thinking database designer placed a constraint in your database to stop people entering invalid values. Your application allows the user to enter invalid values, but luckily your database is stopping it.
A foreign key is how you ensure that a table only gets it's 'lookup' values from a valid list.
If you remove the constraint you will risk putting garbage into your database that is a great effort to fix.
If you start putting invalid values in this table it means things like inner joins stop working and data starts going missing in reports.

Need a bit more information such as tables being inserted and the foreign keys on it. Likely the text entered doesn't match that of the drop down. You would likely have to remove the foreign key. However if the design was that a numeric value was being inserted and not just a text one, The users now have a text area... where's the numeric value (I'm assuming some design here which is why I asked for tables and keys)? I'd likely do the following:
Change the table structure so that the value being inserted is character based (if not already)
Remove key constraint
Update the existing records so the text of the lookup value is replacing the numeric values (assuming numeric design of foreign key.
Drop original lookup table.
Alter design so code uses distinct on the column in the remaining table for it's list of values.
The alternative is that you'd have to insert the new text value first into the lookup table, then get it's new key value then do the insert statement. I suppose this could be handled with triggers and a before update statement but the question; but unless there's a reason to keep them separate, the above numbered list seems simpler in the long run

Previously with the dropdown, you were allowing the user to chose from the predefined values, i.e. values that were present in your lookup table to which you have put a foreign key constraint. But now as user can enter any value(which might not be present in the foreign table) thus resulting in this error.
To remove this error you can drop the constraint
ALTER TABLE <TABLE_NAME> DROP CONSTRAINT <FOREIGN_KEY_NAME>
or check the value(against the foreign key table) entered by user before inserting it.
UPDATE
If you have removed the foreign key constraint, then you'll have to insert any new(you'll have to check if data is new or old) data in the lookup table, assign it an ID and then insert this new ID in the main table to create the link between the two. NOTE: You can maintain the foreign key constraint in this case.

How to update same columns on different tables at the same time?

I have Table-A with a column called serial_number, and Table-B has the same column.
Update a single table is not possible to their linkage, upon attempt though, this is the error:
The UPDATE statement conflicted with the FOREIGN KEY constraint
"L_231". The conflict occurred in
database "Main", table "dbo.Products".
The statement has been terminated.
I know how I can delete the field in both in case I need to, I just don't know how to update it simultaneously.
Thanks.

this is a BAD design. if this isn't a "one time thing" to fix an issue, but part of your applicaion, you need a redesign.
You shouldn't update keys, use a surrogate key (like an identity) instead and then store the serial_number as a plain data column (which can be easily changed).

You should be able to set the constraint as ON UPDATE CASCADE.

Hello
Good question but ????
one Method is Update trigger
you update in same time on different table

Why would I get a duplicate key error when updating a row?

I'm using postgres and I'm getting the duplicate key error when updating a row:
cursor.execute("UPDATE jiveuser SET userenabled = 0 WHERE userid = %s" % str(userId))
psycopg2.IntegrityError: duplicate key value violates unique constraint "jiveuser_pk"
I don't understand how updating a row can cause this error... any help will be much appreciated.

The error would seem to indicate that the userenabled column is participating in the jiveuser_pk primary key. My guess is that both userid and userenabled participate in the primary key, and that you've already a userid where userenabled is equal to zero.

Triggers. Find out what your DBA did when you weren't looking, that triggers fire and do all sorts of random things you had no idea were going on, and IT generated the duplicate error and caused your transaction to fail.

Could happen if userenabled is part of a key and setting it to 0 collides with another key with the same value.
It's also possible there is a trigger in play here, though less likely than a simple key collision.
I suppose to answer fully we need to see what the primary key is for that table.

You would need to know the components of the primary key to know. Try running \d jiveuser_pk from the command-line. I'm guessing that the PK on that table is (userid, userenabled) or that there is some trigger that is running after the update.

INSERT statement conflicted with the FOREIGN KEY constraint - SQL Server

I am getting the following error. Could you please help me?
Msg 547, Level 16, State 0, Line 1
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Sup_Item_Sup_Item_Cat". The conflict occurred in database "dev_bo", table "dbo.Sup_Item_Cat". The statement has been terminated.
Code:
insert into sup_item (supplier_id, sup_item_id, name, sup_item_cat_id,
status_code, last_modified_user_id, last_modified_timestamp, client_id)
values (10162425, 10, 'jaiso', '123123',
'a', '12', '2010-12-12', '1062425')
The last column client_id is causing the error. I tried to put the value which already exists in the dbo.Sup_Item_Cat into the column, corresponding to the sup_item.. but no joy :-(

In your table dbo.Sup_Item_Cat, it has a foreign key reference to another table. The way a FK works is it cannot have a value in that column that is not also in the primary key column of the referenced table.
If you have SQL Server Management Studio, open it up and sp_help 'dbo.Sup_Item_Cat'. See which column that FK is on, and which column of which table it references. You're inserting some bad data.
Let me know if you need anything explained better!

I had this issue myself, regarding the error message that is received trying to populate a foreign key field. I ended up on this page in hopes of finding the answer. The checked answer on this page is indeed the correct one, unfortunately I feel that the answer is a bit incomplete for people not as familiar with SQL. I am fairly apt at writing code but SQL queries are new to me as well as building database tables.
Despite the checked answer being correct:
Mike M wrote-
"The way a FK works is it cannot have a value in that column that is
not also in the primary key column of the referenced table."
What is missing from this answer is simply;
You must build the table containing the Primary Key first.
Another way to say it is;
You must Insert Data into the parent table, containing the Primary
Key, before attempting to insert data into the child table containing
the Foreign Key.
In short, many of the tutorials seem to be glazing over this fact so that if you were to try on your own and didn't realize there was an order of operations, then you would get this error. Naturally after adding the primary key data, your foreign key data in the child table must conform to the primary key field in the parent table, otherwise, you will still get this error.
If anyone read down this far. I hope this helped make the checked answer more clear. I know there are some of you who may feel that this sort of thing is pretty straight-forward and that opening a book would have answered this question before it was posted, but the truth is that not everyone learns in the same way.

You are trying to insert a record with a value in the foreign key column that doesn't exist in the foreign table.
For example: If you have Books and Authors tables where Books has a foreign key constraint on the Authors table and you try to insert a book record for which there is no author record.

You'll need to post your statement for more clarification. But...
That error means that the table you are inserting data into has a foreign key relationship with another table. Before data can be inserted, the value in the foreign key field must exist in the other table first.

The problem is not with client_id from what I can see. It looks more like the problem is with the 4th column, sup_item_cat_id
I would run
sp_helpconstraint sup_item
and pay attention to the constraint_keys column returned for the foreign key FK_Sup_Item_Sup_Item_Cat to confirm which column is the actual problem, but I am pretty sure it is not the one you are trying to fix. Besides '123123' looks suspect as well.

Something I found was that all the fields have to match EXACTLY.
For example, sending 'cat dog' is not the same as sending 'catdog'.
What I did to troubleshoot this was to script out the FK code from the table I was inserting data into, take note of the "Foreign Key" that had the constraints (in my case there were 2) and make sure those 2 fields values matched EXACTLY as they were in the table that was throwing the FK Constraint error.
Once I fixed the 2 fields giving my problems, life was good!
If you need a better explanation, let me know.

I ran into this problem when my insert value fields contained tabs and spaces that were not obvious to the naked eye. I had created my value list in Excel, copied, and pasted it to SQL, and run queries to find non-matches on my FK fields.
The match queries did not detect there were tabs and spaces in my FK field, but the INSERT did recognize them and it continued to generate the error.
I tested again by copying the content of the FK field in one record and pasting it into the insert query. When that record also failed, I looked closer at the data and finally detected the tabs/spaces.
Once I cleaned removed tabs/spaces, my issue was resolved. Hope this helps someone!

Double check the fields in the relationship the foreign key is defined for. SQL Server Management Studio may not have had the fields you wanted selected when you defined the relationship. This has burned me in the past.

run sp_helpconstraint
pay ATTENTION to the constraint_keys column returned for the foreign key

I had the same problem when I used code-first migrations to build my database for an MVC 5 application. I eventually found the seed method in my configuration.cs file to be causing the issue. My seed method was creating a table entry for the table containing the foreign key before creating the entry with the matching primary key.

Parent table data missing causes the problem.
In your problem non availability of data in "dbo.Sup_Item_Cat" causes the problem

I also got the same error in my SQL Code, This solution works for me,
Check the data in Primary Table May be you are entering a column value which is not present in the primary key column.

The problem was reproducible and intermittent for me using mybatis.
I'm sure I had correct DB configuration (PK, FK, auto increment etc)
I'm sure I had correct order of insertions (parent records first), in debug I could see parent record inserted with respective PK and just after that next statement failed with inserting child record with correct FK inside.
The problem was fixed by for reseeding identity with
DBCC CHECKIDENT ('schema.customer', RESEED, 0);
DBCC CHECKIDENT ('schema.account', RESEED, 0);
Exactly the same code that failed before started to work.
I would like somebody to explain me what was causing the issue.

In my case, I was inserting the values into the child table in the wrong order:
For the table with 2 columns: column1 and column2, I got this error when I mistakenly entered:
INSERT INTO Table VALUES('column2_value', 'column1_value');
The error was resolved when I used the below format:-
INSERT INTO Table (column2, column1) VALUES('column2_value', 'column1_value');

If your FK column table should contain that FK value as a primary key Value then data will be inserted.