2026-03-12 20:23:15

2026-03-12 21:23:47 +01:00
parent eab4b36eca
commit 93039b8489
3332 changed files with 699614 additions and 0 deletions
--- a/vdh/blocked_sessions2.sql
+++ b/vdh/blocked_sessions2.sql
@@ -0,0 +1,44 @@
+set linesize 150
+
+column username format a20
+column bi format 99
+column bs format 9999
+column siw format 999999
+column rwo# format 99999999
+column tl format a5
+column inst_id format a10
+
+with sessions
+as ( select /*+ MATERIALIZE */
+            inst_id, sid, serial#, username, sql_id, blocking_instance bi, blocking_session bs, 
+            seconds_in_wait siw, row_wait_obj# rwo#,  row_wait_file# rwf#, row_wait_block# rwb#,
+            row_wait_row# rwr#
+     from gv$session
+   )
+select lpad('-', level, '-') || inst_id inst_id, sid, serial#, username, sql_id, bi, bs, siw, rwo#,  
+       rwf#, rwb#, rwr#
+from sessions
+where bs is not null
+      or (inst_id, sid) in
+        ( select bi, bs
+          from sessions
+        )
+start with bs is null
+connect by ( bi = prior inst_id
+             and bs = prior sid
+           )
+;
+
+
+/*
+FUNCTION ROWID_CREATE RETURNS ROWID
+ Argument Name                  Type                    In/Out Default?
+ ------------------------------ ----------------------- ------ --------
+ ROWID_TYPE                     NUMBER                  IN
+ OBJECT_NUMBER                  NUMBER                  IN
+ RELATIVE_FNO                   NUMBER                  IN
+ BLOCK_NUMBER                   NUMBER                  IN
+ ROW_NUMBER                     NUMBER                  IN
+
+select dbms_rowid.rowid_create(1, 81574, 26, 286, 262) from dual;
+*/