Difference between Bind and Lexical parameters?

Answer Posted / oracleapps_learner

BIND VARIABLE :
-- are used to replace a single value in sql, pl/sql
-- bind variable may be used to replace expressions in
select, where, group, order by, having, connect by, start
with cause of queries.
-- bind reference may not be referenced in FROM clause (or)
in place of reserved words or clauses.
LEXICAL REFERENCE:
-- you can use lexical reference to replace the clauses
appearing AFTER select, from, group by, having, connect by,
start with.
-- you can?t make lexical reference in a pl/sql statmetns.

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