Answer / jay

Bind parameters are used to substitute one value at runtime
for evaluation and are identified by a preceding ‘:’. An
example of a bind parameter in a select statement is
provided below, where :P_EMP is the bind parameter
reference.

Example:
select *
from emp
where emp.name = :P_EMP;

Answer / sridhars.s

->there are denoted by columns
->it accepts single automic value
->bind parameters can be included in lexical parameter
->there parameters are denoted by ':'
exp: :num

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