文档解释
ORA-02402: PLAN_TABLE not found
Cause: The table used by EXPLAIN to store row source information does not exist in the current schema.
Action: Create a plan table in the current schema or use the INTO clause of the statement to put the results of the explain command in an existing plan table.
ORA-02402：表PLAN_TABLE未找到
官方解释
常见案例
正常处理方法及步骤
SQL> connect sys as sysdba
SQL> @$ORACLE_HOME/rdbms/admin/utlxplan.sql;
