#recursion

ORA-53802: cannot perform conformance validation because recursion level exceeds MAX_RECURSION_DEPTH

文档解释ORA-53802:cannotperformconformancevalidationbecauserecursionlevelexceedsMAX_RECURSION_DEPTHCause:WhenevaluatingtherecursiveconstraintontheDICOMobject,thenum...

ORA-32045: maximum level of recursion reached while executing recursive WITH query

文档解释ORA-32045:maximumlevelofrecursionreachedwhileexecutingrecursiveWITHqueryCause:ArecursiveWITHqueryreachedthemaximumlevelofrecursionspecifiedandwasstopped.Act...

MySQL Error number: 3636; Symbol: ER_CTE_MAX_RECURSION_DEPTH; SQLSTATE: HY000

文档解释Errornumber:3636;Symbol:ER_CTE_MAX_RECURSION_DEPTH;SQLSTATE:HY000Message:Recursivequeryabortedafter%uiterations.Tryincreasing@@cte_max_recursion_depthtoalar...

迭代(iterate)和递归(recursion)的区别

斐波那契函数为例:递归||栈||:(重复多次调用程序或函数本身)intfib(intn){if(n>1)returnfib(n-1)+fib(n-2);elsereturnn;//n=0,1时给出recursion终止条件}递归实际上不断地深层调用函数,直到函数有返回才会逐层的返回,因此,递归涉及到运行时的堆栈开...