Postgresql-arithmetic-operators

PostgreSQL-算術演算子

PostgreSQLの算術演算子の使用法を示す簡単な例を次に示します-

testdb=# select 2+3;
 ?column?
----------
        5
(1 row)


testdb=# select 2*3;
 ?column?
----------
        6
(1 row)


testdb=# select 10/5;
 ?column?
----------
        2
(1 row)


testdb=# select 12%5;
 ?column?
----------
        2
(1 row)


testdb=# select 2^3;
 ?column?
----------
        8
(1 row)


testdb=# select |/25.0;
 ?column?
----------
        5
(1 row)


testdb=# select ||/27.0;
 ?column?
----------
        3
(1 row)


testdb=# select 5 !;
 ?column?
----------
      120
(1 row)


testdb=# select !!5;
 ?column?
----------
      120
(1 row)