如何为同义词添加约束？

Question

我有麻烦了。我确实运行了那段代码。不幸的是，无法工作。

ORA-00942：表或视图不存在。

帮帮我们:)

ALTER SYNONYM tbs_custchnl
ADD CONSTRAINT uniq_four_unique 
UNIQUE(cif, chid, ch_value, langid) DISABLE NOVALIDATE;

解

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this is synonym. So, I can't add constraint to synonym. In other words, I can only add constraint to a table or view.

谢谢大家！ ：d

Answer 1

尝试此查询以查明视图是否存在：

SELECT * FROM all_objects WHERE object_type IN ('TABLE','VIEW') AND object_name = 'tbs_custchnl'