Doug, on Friday, November 15, 2019 11:42 AM, wrote...
>
> WRT Jose's original context, and just for my enlightment, what happens with
> the following:
>
> insert into t (a, b, c, d, e, idate)
> SELECT a, b, c, 'y', e, '2019-02-12' FROM t WHERE a = 'p999';
>
> where p999 does not define a record? Is a new record inserted with values of
> a,b,c, and e null?
It does not get inserted.
sqlite> drop table t;
sqlite> create table t (n INTEGER PRIMARY KEY, a, b, c, d, e, idate);
sqlite> insert into t (a, b, c, d, e, idate) values ('p001', 1, 2, 'n', 4,
'2019-02-11');
sqlite> insert into t (a, b, c, d, e, idate) values ('p002', 2, 2, 'n', 4,
'2019-02-11');
sqlite> insert into t (a, b, c, d, e, idate) values ('p003', 3, 2, 'n', 4,
'2019-02-11');
sqlite> insert into t (a, b, c, d, e, idate) values ('p004', 4, 2, 'y', 4,
'2019-02-11');
sqlite> insert into t (a, b, c, d, e, idate) values ('p005', 5, 2, 'y', 4,
'2019-02-11');
sqlite> select * from t;
1|p001|1|2|n|4|2019-02-11
2|p002|2|2|n|4|2019-02-11
3|p003|3|2|n|4|2019-02-11
4|p004|4|2|y|4|2019-02-11
5|p005|5|2|y|4|2019-02-11
sqlite> insert into t (a, b, c, d, e, idate)
...> SELECT a, b, c, 'y', e, '2019-02-12' FROM t WHERE a = 'p999';
sqlite> select * from t;
1|p001|1|2|n|4|2019-02-11
2|p002|2|2|n|4|2019-02-11
3|p003|3|2|n|4|2019-02-11
4|p004|4|2|y|4|2019-02-11
5|p005|5|2|y|4|2019-02-11
sqlite>
josé
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