ORA-32480: SEARCH and CYCLE clauses can only be specified for recursive WITH clause elements
Cause: A SEARCH or a CYCLE clause was specified for a WITH clause element that was not recursive.
Action: Remove the SEARCH or CYCLE clause, or add recursion to the WITH clause element.
ORA-32480错误是一种逻辑错误,表明只有在递归WITH子句中才能指定SEARCH和CYCLE子句。
官方描述:
ORA-32480: SEARCH and CYCLE clauses can only be specified for recursive WITH clause elements
这种错误的常见原因是在WITH子句中指定了SEARCH/CYCLE子句,但该子句没有指定为递归子句。
要避免出现此类错误,请确保在使用SEARCH/CYCLE子句时,该子句永远只被用于递归WITH子句元素中,而不是用于普通的关系子句中。另外,还要确保递归子句中没有使用WITH子句。