Oracle Disable Constraints & Enable Constraints

I will explain how to Disable Constraints & Enable Constraints in Oracle in this post.

 

 

Oracle Disable Constraints & Enable Constraints

Sometimes you may need to enable or disable the Oracle Constraints.

 

 

Disable Constraint in Oracle

You can disable the existing constraint as follows. If you couldn’t disable the constraint, you can use the Cascade option as follows.

 

SQL> alter table TABLE_NAME disable constraint CONSTRAINT_NAME;
Table altered.



SQL> alter table TABLE_NAME disable constraint CONSTRAINT_NAME cascade;
Table altered.

 

 

Enable Constraint in Oracle

You can enable the existing constraint as follows.

 

 

SQL> alter table TABLE_NAME enable constraint CONSTRAINT_NAME;
Table altered.

 

If you want  to disable all constraints, use the following script.

 

select 'alter table '||owner||'.'||table_name||' disable constraint '||constraint_name||';' from user_constraints;

 

 

To enable all constraints, use the following script.

 

select 'alter table '||owner||'.'||table_name||' enable constraint '||constraint_name||';' from user_constraints;

 

 

Do you want to learn Oracle Database for Beginners, then read the following articles.

https://ittutorial.org/oracle-database-19c-tutorials-for-beginners/

About Mehmet Salih Deveci

I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience.I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource.I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks.I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients.If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress [email protected].-                                                                                                                                                                                                                                                 -Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  [email protected] a mail atabilirsiniz.

One comment

  1. Badou Koffi Arthur Kossonou

    I want to learn sql

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