DDL With the WAIT Option

Posted on by Osama Mustafa in Database
The DDL_LOCK_TIMEOUT parameter indicates the number of seconds a DDL command should wait for the locks to become available before throwing the resource busy error message

For Example : 

CREATE TABLE lock_tab (id  NUMBER);
INSERT INTO lock_tab VALUES (1);
 
ALTER SESSION SET ddl_lock_timeout=30;
 
ALTER TABLE lock_tab ADD (description  VARCHAR2(50)); 

ALTER TABLE lock_tab ADD (
            *
ERROR at line 1:
ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired

 Ref :
Oracle_base

Thank you
Osama mustafa

Published by Osama Mustafa

Osama considered as one of the leaders in Cloud technology, DevOps and database in the Middle-East. I have more than ten years of experience within the industry. moreover, certfied 4x AWS , 4x Azure and 6x OCI, have also obtained database certifications for multiple providers. In addition to having experience with Oracle database and Oracle products, such as middle-ware, OID, OAM and OIM, I have gained substantial knowledge with different databases. Currently, I am architecting and implementing Cloud and DevOps. On top of that, I'm providing solutions for companies that allow them to implement the solutions and to follow the best practices.

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