The Oracle (+) outer and cross join syntax is directly mapped to the DB2 database product.

Oracle(+)外连接和交叉连接语法被直接映射到DB 2数据库产品。

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(+) join syntax this syntax is actually discouraged even by Oracle, but there are numerous applications and developers who still use this form of OUTER join syntax.

(+)连接语法这种语法实际上甚至连Oracle都不提倡了，但是有很多应用程序和开发人员仍在使用这种形式的OUTER join语法。

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