大批量執行DML語句造成回滾段大量占用,又回退操作,如何直觀查詢數據回滾情況?
單機環境 查詢回滾執行進度
select /*+ rule */s.sid, r.name rr, nvl(s.username,'no transaction') us, s.osuser os, s.terminal te, t.used_urec rec, t.used_ublk blk from v$lock l, v$session s, v$rollname r,v$transaction t where l.sid = s.sid(+) and trunc(l.id1/65536) = r.usn and l.type = 'TX' and t.ses_addr = s.saddr and l.lmode = 6;
單機環境 查詢回滾執行進度
select /*+ rule */s.sid, r.name rr, nvl(s.username,'no transaction') us, s.osuser os, s.terminal te, t.used_urec rec, t.used_ublk blk from v$lock l, v$session s, v$rollname r,v$transaction t where l.sid = s.sid(+) and trunc(l.id1/65536) = r.usn and l.type = 'TX' and t.ses_addr = s.saddr and l.lmode = 6;
集群環境 查詢回滾執行進度
select /*+ rule */s.sid, r.name rr, nvl(s.username,'no transaction') us, s.osuser os, s.terminal te, t.used_urec rec, t.used_ublk blk from gv$lock l, gv$session s, v$rollname r,gv$transaction t where l.sid = s.sid(+) and trunc(l.id1/65536) = r.usn and l.type = 'TX' and t.ses_addr = s.saddr and l.lmode = 6;
單機環境 查詢回滾執行進度
select /*+ rule */s.sid, r.name rr, nvl(s.username,'no transaction') us, s.osuser os, s.terminal te, t.used_urec rec, t.used_ublk blk from v$lock l, v$session s, v$rollname r,v$transaction t where l.sid = s.sid(+) and trunc(l.id1/65536) = r.usn and l.type = 'TX' and t.ses_addr = s.saddr and l.lmode = 6;
總結
以上所述是小編給大家介紹的Oracle回滾段使用查詢代碼詳解，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對VeVb武林網網站的支持！
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