oracle - Oracle 的备用模式中的外键？

Question

我有两个模式，我们称它们为 BOB 和 FRED。我需要从架构 BOB 调用架构 FRED 中的表，以将该表中的主键用作外键。我已经为架构 FRED 设置了适当的授权以允许 BOB 访问它，但是每当我运行脚本时，它都会提示我没有正确的权限。我需要在某处更改其他设置吗？这甚至可以做到吗？

我的FK创作如下:

ALTER TABLE "BOB"."ITEMGROUP" WITH CHECK ADD CONSTRAINT FK_ITEMS_ITEM FOREIGN KEY (ItemID)
REFERENCES "FRED"."ITEMS"(ItemID)

我正在做赠款:

GRANT ALTER ON "FRED"."ITEMS" TO "BOB"

我收到此错误消息:

SQL Error: ORA-01031: insufficient privileges 
01031. 00000 -  "insufficient privileges"

*Cause:    An attempt was made to change the current username or password
           without the appropriate privilege. This error also occurs if
           attempting to install a database without the necessary operating
           system privileges.
           When Trusted Oracle is configure in DBMS MAC, this error may occur
           if the user was granted the necessary privilege at a higher label
           than the current login.

*Action:   Ask the database administrator to perform the operation or grant
           the required privileges.
           For Trusted Oracle users getting this error although granted the
           the appropriate privilege at a higher label, ask the database
           administrator to regrant the privilege at the appropriate label.

Answer 1

你需要:

grant references on "FRED"."ITEMS" TO "BOB"

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