database - Oracle err=918，unixUDBC，instantclinet

Question

在程序中使用 SQLExecDirect 执行查询

SELECT 
  q.record_id as record_id, 
  s.scenariusz as scenariusz, 
  u.usluga as usluga, 
  u.priorytet as priorytet, 
  q.vip as vip, 
  q.date_added as date_added, 
  q.chat_server_session_id as chat_server_session_id 
FROM 
  queue_webchat_messenger q 
  JOIN usluga u on u.id_uslugi = q.id_uslugi 
  JOIN scenariusz s on s.id_scen = u.id_scen 
WHERE 
  q.id_agent_soft is NULL
  AND q.state = 'KO' 
ORDER by 
  u.priorytet desc, 
  q.id_uslugi, 
  q.vip desc, 
  q.date_added, 
  q.record_id;

在数据库日志（Oracle）中，我得到错误 err = 918

=====================
PARSE ERROR #139794508205160:len=450 dep=0 uid=178 oct=3 lid=178 tim=16259156390104 err=918
SELECT ROWID,q.record_id as record_id, s.scenariusz as scenariusz, u.usluga as usluga, u.priorytet as priorytet, q.vip as vip, q.date_added as date_added, q.chat_server_session_id as chat_server_session_id FROM queue_webchat_messenger q JOIN usluga u on u.id_uslugi=q.id_uslugi JOIN scenariusz s on s.id_scen=u.id_scen WHERE q.id_agent_soft is null AND q.state=:"SYS_B_0" ORDER by u.priorytet desc, q.id_uslugi, q.vip desc, q.date_added, q.record_id
CLOSE #139794508205160:c=0,e=2,dep=0,type=0,tim=16259156390850
=====================

在数据库日志中，ROWID 列被添加到查询中，我怀疑该列导致错误。什么可能导致添加 ROWID 列以及什么可能导致 err = 918？

Answer 1

请尝试添加一个假的 ROWID 列：

SELECT 
  q.record_id as ROWID,
  q.record_id as record_id, 
  s.scenariusz as scenariusz, 
  u.usluga as usluga, 
  u.priorytet as priorytet, 
  q.vip as vip, 
  q.date_added as date_added, 
  q.chat_server_session_id as chat_server_session_id 
FROM 
  queue_webchat_messenger q 
  JOIN usluga u on u.id_uslugi = q.id_uslugi 
  JOIN scenariusz s on s.id_scen = u.id_scen 
WHERE 
  q.id_agent_soft is NULL
  AND q.state = 'KO' 
ORDER by 
  u.priorytet desc, 
  q.id_uslugi, 
  q.vip desc, 
  q.date_added, 
  q.record_id;