WebMar 1, 2024 · Version count of some SQL statements are very high > 1024. V$SQL_SHARED_CURSOR shows lot of child cursors created with PURGED_CURSOR mismatch with reason "Marked for Purge (5)". Changes Database Upgraded to 12.2.0.1. Cause In this Document Symptoms Changes Cause Solution References WebJan 20, 2024 · Understanding SQL Query Parsing – Part 3: Bind Variables and Cursor Sharing. In the first and the second parts of this series, we learned what query parsing is, how hard and soft parsing work, what their impact on the query is, and then moved on to understand the concept of parent and child cursors. In this third article, we will look at the ...
Oracle Cursor Sharing Bug - LinkedIn
WebAmount of shared memory used by the child cursor (in bytes) LOADED_VERSIONS. NUMBER. Indicates whether the context heap is loaded (1) or not (0) VERSION_COUNT. NUMBER. Number of children associated with the cursor ... See Also: Oracle Exadata Storage Server Software documentation for more information … WebSep 12, 2015 · The documentation for V$SQL says for INVALIDATIONS: "Number of times this child cursor has been invalidated" So just because a child has been invalidated, … hide and mute in teams
QUICK OVERVIEW OF SHARED POOL TUNING - ORACLE IN ACTION
WebJan 30, 2024 · This article provides an approach for addressing non-sharable cursors that may fail with an error ORA-600 [17059]. The purpose of this article is to assist Support … WebSep 30, 2008 · to create a completely new child cursor and execution plan. Once this happens, Oracle 11g also stores the relative selectivity of the child cursor in the Adaptive Cursor Sharing metadata. I find it helps to think of these selectivity ratings as the central point of an “electron cloud” or sphere of influence. (The Oracle documentation uses the WebSep 20, 2024 · High Number of Child Cursors for Queries using due to HASH_MATCH_FAILED High Number of Child Cursors for Queries using due to … hide and lock tabs in excel