only join in sql
They are functionally equivalent, but INNER JOIN can be
a bit clearer to read, especially if the query has
other join types (i.e. LEFT or RIGHT or CROSS)
included in it.only join in sql
They are functionally equivalent, but INNER JOIN can be
a bit clearer to read, especially if the query has
other join types (i.e. LEFT or RIGHT or CROSS)
included in it.join types in sql
INNER JOIN:
is used when retrieving data from multiple
tables and will return only matching data.
LEFT OUTER JOIN:
is used when retrieving data from
multiple tables and will return
left table and any matching right table records.
RIGHT OUTER JOIN:
is used when retrieving data from
multiple tables and will return right
table and any matching left table records
FULL OUTER JOIN:
is used when retrieving data from
multiple tables and will return both
table records, matching and non-matching.Copyright © 2021 Codeinu
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