DDL operation while execution Home > Oracle Application Blog > DDL operation while execution While query execution we cannot do the ddl operation in the earlier versions From 11g we can use the below script to lock the object for mentioned seconds and perform the ddl operation. ALTER SESSION SET DDL_LOCK_TIMEOUT=60; Doyensys social@doyensys.com Recent Posts Unable to Launch the Application: JAR Resources in JNLP File Are Not Signed by the Same Certificate Stop Wrestling with Your Data: How SQL Server 2025 Turns Every Employee into an Insight Power User Oracle Database 26ai: Making Every Employee a Data Expert Without the Complexity