Dynamic Performance Views on Oracle Scripts

Check RESUMABLE_TIMEOUT and RESUMABLE Status in V$SESSION

Fri, 19 Jun 2026 00:00:00 +0000

Check RESUMABLE_TIMEOUT and RESUMABLE Status in V$SESSION

Purpose

V$SESSION carries two columns that tell you whether a session can survive running out of space: RESUMABLE and the resumable timeout that governs it. When resumable space allocation is enabled, a statement that hits a space error — a full tablespace, a maxed-out datafile, an exceeded user quota — does not fail immediately. Oracle suspends it, raises a RESUMABLE alert, and waits. If a DBA frees the space inside the timeout window, the statement wakes up and continues from where it stopped. If the window expires first, the statement fails with the original space error.

Monitor PGA Aggregate Target with V$PGASTAT in Oracle

Thu, 18 Jun 2026 00:00:00 +0000

Monitor PGA Aggregate Target with V$PGASTAT in Oracle

Purpose

Is PGA_AGGREGATE_TARGET set high enough for the work the instance actually does? V$PGASTAT answers that question. It is the instance-level statistics view for the Program Global Area — the private memory Oracle hands to each server process for sorting, hashing, and bitmap operations. Where a per-session PGA view tells you what one connection is using, V$PGASTAT rolls every process into one set of instance-wide numbers: the target you asked for, the bytes actually allocated, the high-water mark, and the cache hit percentage that says whether work-area operations are running in memory or spilling to temp.