Error ora 02292 integrity constraint

Sql error ora 02292

The incredible assortment of data tables that a user can work with in Oracle can be a blessing and, at times, a curse. Some of the most frustrating Oracle errors occur due to problems with volumes of data being pulled and recorded across multiple table sets, then at various times being manipulated. This action effectively allows a single keystroke to alter information across countless tables.

The ORA-02292 error is a product of this kind of situation. While it may seem a bit overwhelming compared to relatively simpler errors to overcome, such as syntax mistakes, there are a few different approaches that a user can take resolve the error and prevent it from recurring.

The ORA-02292 error indicates that an “integrity constraint was violated – child record found”. What this indicates is that the user attempted to delete a record from a parent table (which is referenced by a foreign key), but a record in the child table exists. Before we continue, let us review what a parent-child relationship in Oracle really means.

The foreign key in Oracle provides a means to enforce referential integrity in a database. The table to be referenced is denoted as the “parent table”, which has its own primary key. This primary key matches with the foreign key in the “child table”. The foreign key and integrity constraints are designed for the purpose of maintaining data integrity, which is an adherence to the rules of certain variable levels as specified by a company and enforced by a systems administrator.

Examples of these variable levels are employee numbers or salaries, both of which a company will have specific rules to address The primary key in the parent table serves as the basis for which the levels are enforced.

Now that we have covered this information, let us turn back to the ORA-02292 error and how we can solve and prevent this error.

In order to correct the ORA-02292 error, the user will need to update or delete the value into the child table first and subsequently delete the corresponding information in the parent table. Suppose the user created the following foreign key:

CREATE TABLE employer

( employer_id numeric(25) not null,
employer_name varchar2 (100) not null,
contact_name varchar2(100),
CONSTRAINT employer_pk PRIMARY KEY (employer_id)
);

CREATE TABLE employees

( employee_id numeric(25) not null,
employee_id varchar2 (25) not null,
contact_name varchar2(100),
CONSTRAINT employer_fk

FOREIGN KEY (employer_id)

REFERENCES employer (employer_id)
);

From there, the user tries to insert into the employees table the following:

INSERT INTO employer
(employer_id, employer_name, contact_name)
VALUES (525, ‘WALMART’, ‘SAM WALTON’);

INSERT INTO employees
(employee_id, employer_id)
VALUES (600, 525);

Suppose the user then attempted to delete the record from the employer table as follows:

DELETE from employer
WHERE employer_id = 525;

The user would then receive the following Oracle error message:

ORA-02292: integrity constraint (COLLECT.FK_EMPLOYER) violated – child record found

Because the employer_id value of 525 exists in the employees records, the user needs to first delete the record from the employees table:

DELETE from employees
WHERE employer_id = 525;

Then the user can delete from the employer table:

DELETE from employer
WHERE employer_id = 525;

Looking forward

Preventative measures can be taken to avoid an ORA-02292. A constraint can be created that looks like the following:

SQL> alter table emp
2 add (constraint job_fk foreign key (job_key)
3 references job (job_key)
4 on delete cascade);

From here out, when using INSERT or UPDATE for the job key column in the EMP table, the foreign key constraint will check to ensure that the job already exists in the JOB table.

Of course, this type of resolution is much more coding-intensive than would be seen with a syntax issue. If you find that you do not feel comfortable working within your database using this kind of coding on valuable referential tables, it would be advised to contact a licensed Oracle consultant for further information on the process.

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Oracle / PLSQL: ORA-02292 Error Message

Learn the cause and how to resolve the ORA-02292 error message in Oracle.

Description

When you encounter an ORA-02292 error, the following error message will appear:

• ORA-02292: integrity constraint violated — child record found

Cause

You tried to DELETE a record from a parent table (as referenced by a foreign key), but a record in the child table exists.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

This error commonly occurs when you have a parent-child relationship established between two tables through a foreign key. You then have tried to delete a value into the parent table, but the corresponding value exists in the child table.

To correct this problem, you need to update or delete the value into the child table first and then you can delete the corresponding value into the parent table.

For example, if you had created the following foreign key (parent-child relationship).

Then you try inserting into the products table as follows:

Then you tried to delete the record from the supplier table as follows:

You would receive the following error message:

Since the supplier_id value of 100 exists in the products, you need to first delete the record from the products table as follows:

Then you can delete from the supplier table:

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ORA-02292: integrity constraint violated happend while inserting record

Our oracle version is “Oracle Database 10g Release 10.2.0.5.0 — 64bit”. We developed our application with Odp.Net but problem is not related to Application side.

Table A has 2 constraints:
1. ID_PRM : Primary key constraints
2. TableC_ID_FK : Foreign key constraints to Table C. Referencing the Table C’s Primary key column.
Table B has 2 constraints:
1. ID_PRM : Primary key constraints
2. FKCF9D7D47C3FD369A : Foreign key constraints to Table A (Tablet that we are inserting data). Referencing to Table A’s Primary key column.

We had an exception thrown while inserting new records to table A. We are sure about this, it was happend while inserting new records. Exception detail is:

+Oracle.DataAccess.Client.OracleException ORA-02292: integrity constraint ([Schema].FKCF9D7D47C3FD369A) violated — child record found at Oracle.DataAccess.Client.OracleException.HandleErrorHelper(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, OpoSqlValCtx* pOpoSqlValCtx, Object src, String procedure, Boolean bCheck) at Oracle.DataAccess.Client.OracleException.HandleError(Int32 errCode, OracleConnection conn, String procedure, IntPtr opsErrCtx, OpoSqlValCtx* pOpoSqlValCtx, Object src, Boolean bCheck) at Oracle.DataAccess.Client.OracleCommand.ExecuteNonQuery() at+

When we looked the ([Schema].FKCF9D7D47C3FD369A) the constriant from user_constraints, it is at table B ! How could this exception happen?
Can anyone understand why this happend?
Best regards.

Best Answer

>
A delete statement runs on Table A before insert statement. Could this throw the exception. (If so please give some detail about how this happen.)
>
Yes — your delete statement is trying to delete the PARENT record when there are CHILD records in the other table that have a foreign key relationship to the parent record.

You need to delete the child records first and then delete the parent record. The alternative is to define the parent table using ON DELETE CASCADE which will cause child records to be deleted automatically when a parent record is deleted.

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Debugging ORA-02292: integrity constraint (OWNER.CONSTRAINT) violated – child record found

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Working with Oracle databases can be daunting to developers and analysts who lack a deep understanding of relational models and SQL. One excellent example of a mystifying pitfall is the dreaded ORA-02292: integrity constraint error. This error often occurs when users are attempting to DELETE rows in a well-normalized schema. For example’s sake, I’ll focus on Oracle Transportation Management (OTM), which is where I’ve spent much of my time over the last six months.

Given the T in OTM, configurators and analysts often focus on orders and shipments. After discovering the backdoor SQL Servlet or connecting via SQL Developer, new configurators and analysts may think they can simply delete rows from the ORDER_RELEASE or SHIPMENT table to remove unwanted data. This often goes something like this…

Oops. The database is telling us that there are records in a different table in the database that point to this record. If we delete this record, the broken reference will confuse the database. But how do we know where the reference is? There are nearly 2000 tables in OTM, so looking through them one-by-one isn’t an option…

At this point, most analysts will learn not to try direct SQL deletions for tables. If you ask, they’ll tell you it’s not possible to do outside of the OTM UI. While it’s true that the UI or application should be used for most common deletion tasks, this misunderstanding of database constraints and normalization can promulgate into broader misunderstandings of feasibility and relational models. So let’s back up and understand what actually went on in this ORA-2292 error above. How do we know where the dependencies on ORDER_RELEASE are?

Oracle databases contain a special table that stores all constraints in the database, conveniently named ALL_CONSTRAINTS. Looking at ALL_CONSTRAINTS, you’ll see that the first two fields are OWNER and CONSTRAINT_NAME. To find the constraint violated in ORA-2292 above, look for the following portion of the message – “integrity constraint ( GLOGOWNER . FK_SSUL_OR_GID ) violated.” In this error string, GLOGOWNER corresponds to the constraint owner, and FK_SSUL_OR_GID corresponds to the constraint name. So, where does this get us?

OK, but what does this mean? In a nutshell, the table S_SHIP_UNIT_LINE has a column that must match up with the PK_ORDER_RELEASE constraint…yes, another constraint to look up.

This one isn’t so bad – PK constraints in OTM’s schema always map to the corresponding GID, or unique identifier for a record. So, to summarize the ORA-2292 error above, we can’t delete the record from ORDER_RELEASE because a record from S_SHIP_UNIT_LINE is tied to that ORDER_RELEASE_GID.

Now, if that makes this seem easy, stop yourself – it’s not. This is just one of many possible integrity constraints that an ORDER_RELEASE may have. Let’s try to summarize the above process into a single query. Given a constraint, how would we find the tables and columns that are tied together?

Great! While the query isn’t small, the only parts you should need to change are the two final WHERE constraints. The output is easy to understand – LEFT_TABLE.LEFT_COLUMN references RIGHT_TABLE.RIGHT_COLUMN.

For extra credit, how would we find every such dependency between a table and other tables? While this may seem much harder than the original query, we’ve already joined the relevant table.

There – 37 first-degree constraints on the ORDER_RELEASE table. Now, if only each of these 37 tables didn’t have their own integrity constraints…but more to come on this in a later post! In the meantime, a few things to remember or bookmark:

• While I’ve focused on the OTM example in this post, the processes in this post are applicable to any Oracle database.
• To learn more about the constraint and constraint column tables, read the documentation: ALL_CONSTRAINTS ; ALL_CONS_COLUMNS.
• These constraints can extend “recursively” through tables. For example, the S_SHIP_UNIT_LINE table depends on the PK_S_SHIP_UNIT_LINE table.
• FKs build a real, directed network! For real-world data models, these networks can be substantial and complex.

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SQL Error: ORA-02292: integrity constraint (EDR.DR_REVIEW_USER_FK2) violate

I have run a script and below is the error i got.
Please help me out in this.

Query:
delete from DR_REVIEW where REVIEW_ID = ‘THERM-R0016327’;

Result:
Error starting at line 1 in command:
delete from DR_REVIEW where REVIEW_ID = ‘THERM-R0016327’
Error report:
SQL Error: ORA-02292: integrity constraint (EDR.DR_REVIEW_USER_FK2) violated — child record found
02292. 00000 — «integrity constraint (%s.%s) violated — child record found»
*Cause: attempted to delete a parent key value that had a foreign
dependency.
*Action: delete dependencies first then parent or disable constraint.

Best Answer

This means that the row(s) you are trying to delete are referenced by another table (child table). This is done by a referential integrity constraint.
In this case you are not allowed to remove a row from a parent table if a child table has rows which has reference to this row in parent table.

Answers

This means that the row(s) you are trying to delete are referenced by another table (child table). This is done by a referential integrity constraint.
In this case you are not allowed to remove a row from a parent table if a child table has rows which has reference to this row in parent table.

982450 wrote:
Hi,

I have run a script and below is the error i got.
Please help me out in this.

Query:
delete from DR_REVIEW where REVIEW_ID = ‘THERM-R0016327’;

Result:
Error starting at line 1 in command:
delete from DR_REVIEW where REVIEW_ID = ‘THERM-R0016327’
Error report:
SQL Error: ORA-02292: integrity constraint (EDR.DR_REVIEW_USER_FK2) violated — child record found
02292. 00000 — «integrity constraint (%s.%s) violated — child record found»
*Cause: attempted to delete a parent key value that had a foreign
dependency.
*Action: delete dependencies first then parent or disable constraint.

982450 wrote:
Hi,

I have run a script and below is the error i got.
Please help me out in this.

Query:
delete from DR_REVIEW where REVIEW_ID = ‘THERM-R0016327’;

Result:
Error starting at line 1 in command:
delete from DR_REVIEW where REVIEW_ID = ‘THERM-R0016327’
Error report:
SQL Error: ORA-02292: integrity constraint (EDR.DR_REVIEW_USER_FK2) violated — child record found
02292. 00000 — «integrity constraint (%s.%s) violated — child record found»
*Cause: attempted to delete a parent key value that had a foreign
dependency.
*Action: delete dependencies first then parent or disable constraint.

Welcome to the forum.

It means you have another table which has a foreign key on a column which points to the dr_review table.

Who is asking you to write this SQL? They need to decide what needs doing in this situation. What
should happen to the rows in the child table that depend on the parent?

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Following example show the error and its various fixes which we can handle in Oracle:

Error

-- Create Primary table
SQL> create table testprimary(id number primary key, name varchar2(10));
Table created.
-- Create Foregin table
SQL> create table testforeign(f_id number, f_name varchar2(10), P_id number, foreign key(p_id) references testprimary(id) );
Table created.

-- Generated Error:
SQL> delete from testprimary where id = 1;
delete from testprimary where id = 1
*
ERROR at line 1:
ORA-02292: integrity constraint (TEST.SYS_C008202) violated - child record
found


Cause
When we tried to delete data from primary table then we have to first delete from its reference table (child table)
While creating foreign key you can specify the clause ON DELETE clause to specify reason when the rows in the parent table are deleted.
ON DELETE CASCADE: if a row in the parent is deleted, then all the rows in the child table that reference to that row will be deleted.
ON DELETE SET NULL: if a row in the parent is deleted, then all the rows in the child table reference to that row will be set to NULL for the foreign key columns.

Solution

Option 1: Fixed the Data in table by finding constraint information

1. Find the Foreign key table name and column name from constraint name got in error:

col table_name for a15
col owner for a15
col column_name for a15
col primaryowner for a10
col primaryconstraintname for a15
select a.constraint_type,a.owner,a.table_name,b.column_name,a.r_owner "PrimaryOwner",a.r_constraint_name "PrimaryConstraintName" from all_constraints a, all_cons_columns b where
A.CONSTRAINT_NAME = b.CONSTRAINT_NAME and a.constraint_name = 'SYS_C008202';

C OWNER           TABLE_NAME      COLUMN_NAME     PrimaryOwn PrimaryConstrai
- --------------- --------------- --------------- ---------- ---------------
R TEST            TESTFOREIGN     P_ID            TEST       SYS_C008201

2. Now found the primary key of the Primary table.
Note: use upper query output constraint name and fetch primary key details.

col table_name for a15
col owner for a15
col column_name for a15
col primaryowner for a10
col primaryconstraintname for a15
select a.constraint_type,a.owner,a.table_name,b.column_name,a.r_owner "PrimaryOwner",a.r_constraint_name "PrimaryConstraintName" from all_constraints a, all_cons_columns b where
A.CONSTRAINT_NAME = b.CONSTRAINT_NAME and a.constraint_name = 'SYS_C008201';

C OWNER           TABLE_NAME      COLUMN_NAME     PrimaryOwn PrimaryConstrai
- --------------- --------------- --------------- ---------- ---------------
P TEST            TESTPRIMARY     ID

3. Now you can fetch the numbers of rows present in Child table which you want to delete in Primary table with IN Clause query.

-- I m just giving example you can clear your data also with it.
select * from TESTFOREIGN where p_id in ( select id from testprimary where id = 1;)


Option 2: You can delete data with disable or enable constraints and performed operation
Note: It mostly worked in case that you want to completly truncate the data from the tables.

-- Disable
ALTER TABLE child_table DISABLE CONSTRAINT fk_name;

--Enable
ALTER TABLE child_table DISABLE CONSTRAINT fk_name;


Option 3: Drop the foreign key constraint:
Note: It worked if you donot need the key between tables.

ALTER TABLE child_table DROP CONSTRAINT fk_name;


I know this is very simple thing but lot of time I am facing this question from newbies that’s why this thread.

Solution for this error,  you have to drop your current foreign key constraint and create new one with  one of below options

ON DELETE SET NULL
or
ON DELETE CASCADE

but before applying that you have to understand your business domain. because ON DELETE CASCADE  will delete the referencing rows from that child tables and ON DELETE SET NULL will set a null value on that referencing column’s rows.

Just a simple practical example-

CREATE TABLE FAMILY (FAMILY_ID NUMBER);

CREATE TABLE MEMBER
(
   MEMBER_ID   NUMBER,
   FAMILY_ID   NUMBER
);

— Primary Key Constraints for Table FAMILY

ALTER TABLE FAMILY ADD (
  CONSTRAINT FAMILY_PK
  PRIMARY KEY
  (FAMILY_ID)
  ENABLE VALIDATE);

— Foreign Key Constraints for Table MEMBER

ALTER TABLE MEMBER ADD (
  CONSTRAINT MEMBER_FAMILY_FK
  FOREIGN KEY (FAMILY_ID)
  REFERENCES FAMILY (FAMILY_ID)
  ENABLE VALIDATE);

INSERT INTO FAMILY (FAMILY_ID)
     VALUES (1);

INSERT INTO FAMILY (FAMILY_ID)
     VALUES (2);

INSERT INTO FAMILY (FAMILY_ID)
     VALUES (3);

INSERT INTO FAMILY (FAMILY_ID)
     VALUES (4);

INSERT INTO FAMILY (FAMILY_ID)
     VALUES (5);

COMMIT;

INSERT INTO MEMBER (MEMBER_ID, FAMILY_ID)
     VALUES (1, 1);

INSERT INTO MEMBER (MEMBER_ID, FAMILY_ID)
     VALUES (1, 1);

INSERT INTO MEMBER (MEMBER_ID, FAMILY_ID)
     VALUES (1, 1);

INSERT INTO MEMBER (MEMBER_ID, FAMILY_ID)
     VALUES (1, 5);

INSERT INTO MEMBER (MEMBER_ID, FAMILY_ID)
     VALUES (1, 5);

INSERT INTO MEMBER (MEMBER_ID, FAMILY_ID)
     VALUES (1, 5);

INSERT INTO MEMBER (MEMBER_ID, FAMILY_ID)
     VALUES (1, 3);

INSERT INTO MEMBER (MEMBER_ID, FAMILY_ID)
     VALUES (1, 3);

INSERT INTO MEMBER (MEMBER_ID, FAMILY_ID)
     VALUES (1, 3);

INSERT INTO MEMBER (MEMBER_ID, FAMILY_ID)
     VALUES (1, 2);

COMMIT;

DELETE FROM family  WHERE family_id = 5               —it will generate an error

     ORA-02292: integrity constraint (CRIC.MEMBER_FAMILY_FK) violated — child record found

Solution:-

1) drop foreign key (before drop please please backup the old script if your are not sure about relationship )

ALTER TABLE MEMBER
   DROP CONSTRAINTS MEMBER_FAMILY_FK

2) create like below

 ALTER TABLE MEMBER
 ADD (CONSTRAINT MEMBER_FAMILY_FK FOREIGN KEY (family_id)
 REFERENCES family (family_id)
 ON DELETE SET NULL ) —- on delete cascade );

DELETE FROM family   WHERE family_id = 5  —in this time no error

rollback;

Cheers……Halim

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If you have an error integrity constraint in Oracle on your system, I hope this guide will help you.

ORA-02291 is usually followed by “Integrity message constraint – parent not found”. This means that you tried to reference this table using the primary key, but the posts you specified did not match the primary key type.

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APAR Status

Error Description

Oracle Enterprise considers some constraint violations to be fatalErrors - Most restrictions for both are reported as an integrity error.sqlcode-1. There are several that fall outside the scope:ORA-02290: limits will bethis is the test condition(string.The string)hurtreason: inserted values ​​don't do itsatisfy the given check constraint.Action: N   insert which values ​​violateforced it.ORA-02291: integrity constraint (string-string)wounded foundReason: Guardian Key of the foreign Key value is the sameno primary key value.Action: remove the Australian key or add one that suits you.primary key.Restrictionora-02292: lifetime values ​​(string.string)wounded - foundReason: abstinence of the child. Attempting to remove the value "Mom", "Important" or "Dad".which dependency had on a foreign key.Action: Remove dependencies from duplicate content then parent first orDisable restriction.They must be created to be in the SQL list.oraUpsert code. which, c, according to experts, are more likely to be sent to the failure servicewhich cause a fatal error for encoding.

Local Solution

Issue Overview

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We******************************************************* ******************************

Problem: It's Impossible To Reproduce The Look Of This Art. However, A New Patch Is Coming Out.The Last Code That Solved The Problem On The Client's Site.

Workaround

Comments

Information-apar

The

Correct Information

Applicable Components

The following example shows a bug, and there are a few fixes we can handle living in Oracle:

Error

-- Create
SQL> main table create cart testprimary(primary key id, name varchar2(10));
The table has been created.
-- Table Foregin create SQL> table
Create testforeign(f_id f_name number, varchar2(10), number, foreign key(p_id) p_id recommendation testprimary(id) );
the table has been created.

insert

— Data in your two tables
Insert sql> basic test parameters (1, ‘RAM’);
1 short period created.
SQL> testprimary to values(2,’RAM2′);
Insert 1 Creates scratches.
Pastesql> in Testprimary(3,’RAM3′);
Feed value 1 created.

happened

— error:
SQL> remove from where id testprimary is 1 testprimary;
remove from where=detection 1
*
Internet Integrity Discipline, ERROR 1:
ora-02292: (TEST.SYS_C008202) broken – child record
found

Reason
If we try to successfully delete the data from the maintables, we will first remove the mention table (child table)
When creating foreign keys, owners can specify an ON DELETE clause to indicate why rows behind the parent table are being deleted.
ON DELETE If cascading: a row from the parent table is frequently deleted, everything from the child table row related to this short period will be deleted.
ON DELETE SET NULL: and when the row of the parent row is deleted, all rows from the reference to table 1 to the row of this external content key are set to NULL.

Option 1: Correct information about table search restrictions in data

1. Find foreign table key name and column name from invalid constraint name:

col for multiple owner table names a15
Collar for a15
column name column associated with a15
primary owner pass for a10
main constraint name col a15
select for a.constraint_type,a.owner,a.table_name,b.column_name,a.r_owner "PrimaryOwner",a.All_constraints r_constraint_name "primaryconstraintname" from all_cons_columns a where
A b.CONSTRAINT_NAME = b.CONSTRAINT_NAME and a.constraint_name is OWNER 'sys_c008202';

c PrimaryOwn table_name column_name PrimaryConstrai- ————– ————— ————— ——————-R —— TEST FOREIGN TEST P_ID TEST SYS_C0082012. The best primary key of the table has now been found.
Note. Use a longer query exit constraint name and enter the enforcement information key.

col for table name a15
Branded collar for working with a15
column name column for a15
main owner pass with a10
Constraint name col is primary for a15
select a.constraint_type,a.owner,a.table_name,b.column_name,a.r_owner "PrimaryOwner",a."PrimaryConstraintName", r_constraint_name created by a, all_constraints all_cons_columns b where
A.CONSTRAINT_NAME means b.CONSTRAINT_NAME and a.constraint_name 'SYS_C008201';

C = TABLE_NAME OWNER COLUMN_NAME PrimaryOwn PrimaryConstrai- —- ———– —- ————— —— ——— TEST ——p PRIMARY IDENTIFICATION TEST3. Now you can get any of our existing rows of numbers in the reverse child that you want to delete in the main table using IN clause query.

-- I'm only giving you an example, you can also use it to delete data.
select * from TESTFOREIGN where p_id is selected (when id comes from id testprimary where = 2:1;)


option You can disableinclude or data with restrictions and operations performed

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