Updating a table using decode.
The example use DECODE function for a conditional update, dependiong of field N value, column V is updated "EVEN" or "ODD".
A number is even when the function MOD result is 0.
-- example table
SQL> create table t (n number, v varchar2(128)) ; SQL> INSERT INTO T(n) values (1);
SQL> INSERT INTO T(n) values (2);
SQL> INSERT INTO T(n) values (2);
SQL> INSERT INTO T(n) values (4);
SQL> INSERT INTO T(n) values (5);
SQL> INSERT INTO T(n) values (7);
SQL> COMMIT;
SQL> UPDATE T SET V = DECODE(MOD(N,2),0,'EVEN','ODD');
SQL> COMMIT;
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A good scientist is a person with original ideas.
A good engineer is a person who makes a design that works with as few original ideas as possible. There are no prima donnas in engineering. Freeman Dyson
A good scientist is a person with original ideas.
A good engineer is a person who makes a design that works with as few original ideas as possible. There are no prima donnas in engineering. Freeman Dyson
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