Question

使用以下查询运行测试时，HSQLDB会将表别名错误地作为架构。

SELECT c.country_ml2country as CTRY_PK, c.name as CTRY_NAME,
l.name as LANGUAGE_NAME, l.code as LANGUAGE_CODE
FROM country_ml as c, language as l
WHERE c.language(+) = l.id and c.country_ml2country(+) = ?
ORDER BY l.name ASC;

以前有没有人经历过这个？如果“是”，那么修复是什么？

请注意，如果我将FROM country_ml as c更改为FROM country_ml as bob，则错误消息会相应更改为invalid schema name: BOB。

Answer 1

问题是非标准的Oracle样式的OUTER JOIN语法，该语法特定于Oracle，而不受其他SQL方言的支持。

WHERE c.language(+) = l.id and c.country_ml2country(+) = ?

您应该使用以下标准语法，Oracle也支持：

SELECT c.country_ml2country as CTRY_PK, c.name as CTRY_NAME,
l.name as LANGUAGE_NAME, l.code as LANGUAGE_CODE
FROM country_ml as c RIGHT OUTER JOIN language as l
ON c.language = l.id and c.country_ml2country = ?
ORDER BY l.name ASC

DbUnit HSQLDB - 模式名称无效：C

1 个答案: