PLW-07204: conversion away from column type may result in
sub-optimal query plan

Answer Posted / 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

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