PLW-07204: conversion away from column type may result in
sub-optimal query plan
Answer / guest
Cause: The column type and the bind type do not exactly
match. This may result in the column being converted to the
type of the bind variable. This type conversion may prevent
the SQL optimizer from using any index the column
participates in. This may adversely affect the execution
performance of this statement.
Action: To make use of any index for this column, make sure
the bind type is the same type as the column type.
Please add more information about this Error
| Is This Answer Correct ? | 1 Yes | 1 No |
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Hi guys, I have four tables those are emp,dept,eliminate and uneliminate. i wrote small cursor..when i run, it display one error (ORA-01403 nodata found)... The query is: Declare cursor c1 is select e.ename emp_name from emp e,dept d where e.deptno=d.deptno group by deptno; r1 c1%rowtype; test_emp varchar2(200); begin for r1 in c1 loop begin select eliminate_emp into test_emp from eliminate t,uneliminate ut where t.number=ut.number and t.deptno=e.deptno and rownum<1; end; dbms_output.put_line(r1.emp_name); end loop; end; Thanks...
ORA-02030: can only select from fixed tables/views