我使用以下查询从mysql表中检索信息。
SELECT ACCESS_TOKEN,
AUTHZ_USER,
TOKEN_SCOPE,
TOKEN_STATE,
REFRESH_TOKEN_TIME_CREATED,
REFRESH_TOKEN_VALIDITY_PERIOD,
IDN_OAUTH2_ACCESS_TOKEN_SELECTED.TOKEN_ID
FROM
(SELECT ACCESS_TOKEN,
AUTHZ_USER,
TOKEN_STATE,
REFRESH_TOKEN_TIME_CREATED,
REFRESH_TOKEN_VALIDITY_PERIOD,
TOKEN_ID
FROM IDN_OAUTH2_ACCESS_TOKEN
WHERE CONSUMER_KEY = ""
AND REFRESH_TOKEN = ""
ORDER BY TIME_CREATED DESC
LIMIT 1) AS IDN_OAUTH2_ACCESS_TOKEN_SELECTED
JOIN IDN_OAUTH2_SCOPE_ASSOCIATION
WHERE IDN_OAUTH2_ACCESS_TOKEN_SELECTED.TOKEN_ID =
IDN_OAUTH2_SCOPE_ASSOCIATION.TOKEN_ID;
如何在具有相同表的Informix数据库中获得相同的结果?
答案 0 :(得分:2)
同样可以通过将'LIMIT 1'转换为'FIRST 1'并将'WHERE'转换为'ON'来实现,
SELECT ACCESS_TOKEN, AUTHZ_USER, TOKEN_SCOPE, TOKEN_STATE,
REFRESH_TOKEN_TIME_CREATED, REFRESH_TOKEN_VALIDITY_PERIOD,
IDN_OAUTH2_ACCESS_TOKEN_SELECTED.TOKEN_ID
FROM (SELECT FIRST 1 ACCESS_TOKEN, AUTHZ_USER, TOKEN_STATE,
REFRESH_TOKEN_TIME_CREATED, REFRESH_TOKEN_VALIDITY_PERIOD,
TOKEN_ID
FROM IDN_OAUTH2_ACCESS_TOKEN
WHERE CONSUMER_KEY = "" AND REFRESH_TOKEN = ""
ORDER BY TIME_CREATED DESC) AS IDN_OAUTH2_ACCESS_TOKEN_SELECTED
JOIN IDN_OAUTH2_SCOPE_ASSOCIATION
ON IDN_OAUTH2_ACCESS_TOKEN_SELECTED.TOKEN_ID = IDN_OAUTH2_SCOPE_ASSOCIATION.TOKEN_ID;