Will Oracle interrupt index creation affect DML?

Will oracle interrupting index creation affect dml?

In Oracle Database, interrupting index creation does not affect the execution of Data Manipulation Language (DML) statements.

Cause:

• Oracle uses a background process when creating indexes and does not block DML operations.
• When index creation is interrupted, the index is still in the background process, but it does not affect the DML operation of the table.
• DML operations can directly access the raw data of the table without being affected by index creation.

Impact:

Interrupting index creation may impact the following:

• Index availability:A broken index cannot be used for query optimization until it is re-created or repaired.
• Query performance:If an index in use is interrupted, queries may not be optimized using that index, which can result in degraded query performance.

Countermeasures:

If index creation is interrupted, it is recommended to take the following steps:

• Check the cause of the interruption and resolve it it.
• Recreate the index or repair the existing index.
• If the index is no longer needed, delete it.

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