As soon as a cycle is detected the appropriate flag defined in the cycle clause is set and the recursive query process for the branch is stopped.
一旦检测到循环,就会设置cycle子句中已定义好的适当标记,并停止分支的递归查询过程。
As soon as a cycle is detected the appropriate flag defined in the cycle clause is set and the recursive query process for the branch is stopped.
一旦检测到循环,就会设置cycle子句中已定义好的适当标记,并停止分支的递归查询过程。
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