USER_IM_EXPRESSIONS

6.455 USER_IM_EXPRESSIONS

USER_IM_EXPRESSIONS provides information about the list of expressions (SYS_IME virtual columns) that are currently enabled for in-memory storage in schemas owned by the current user. Its columns (except for OWNER) are the same as those in DBA_IM_EXPRESSIONS.

Typically, you can query this view after invoking the DBMS_INMEMORY_ADMIN.IME_CAPTURE_EXPRESSIONS PL/SQL procedure to see the list of hot expressions added to tables owned by you across the database.

Based on this view, you can:

Populate expressions on a particular table immediately
Drop certain expressions that are marked for in-memory but not desired by you