The comparison is between a column with "numeric" (integer) affinity and a text
value with no affinity. The text value is an empty string.
Affinity conversion would attempt to convert the text value with no affinity
into a numeric value (0) IF AND ONLY IF the conversion is lossless and
Ok, thanks everyone, it's perfectly clear now.
Cheers,
Norm.
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
___
sqlite-users mailing list
sqlite-users@mailinglists.sqlite.org
On 19 Aug 2018, at 7:56pm, Warren Young wrote:
> On Aug 19, 2018, at 10:03 AM, Norman Dunbar wrote:
>
>> Duck Typing? Never heard that before.
>
> It’s a pretty common term of art in the software development world:
>
> https://en.wikipedia.org/wiki/Duck_typing
That article was written 20
On Aug 19, 2018, at 10:03 AM, Norman Dunbar wrote:
>
> Duck Typing? Never heard that before.
It’s a pretty common term of art in the software development world:
https://en.wikipedia.org/wiki/Duck_typing
___
sqlite-users mailing list
>
>2. questions (am...@juno.com)
> From: "am...@juno.com"
> To: sqlite-users@mailinglists.sqlite.org, am...@juno.com
> Cc:
> Bcc:
> Date: Sat, 18 Aug 2018 16:24:45 GMT
> Subject: [sqlite] questions
> August 18, 2018 Good Morning Good People: I am in the process of building
> a database for
Duck Typing? Never heard that before.
Cheers,
Norm.
--
Sent from my Android device with K-9 Mail. Please excuse my brevity and any
"auto corrections" that are just wrong!
___
sqlite-users mailing list
sqlite-users@mailinglists.sqlite.org
On 2018/08/19 8:58 AM, 麦轲数据管家 wrote:
create table t1(c int);
insert into t1 values (1),(2),(3);
select * from t1 where c>'' ; --get nothing(empty result)
select * from t1 where c<''; --get result set:1,2,3
create table t2(c char);
insert into t2 values (1),(2),(3);
select * from t2 where
It's documented behaviour.
https://www.sqlite.org/datatype3.html#comparisons
2018-08-19 8:58 GMT+02:00, 麦轲数据管家 :
> create table t1(c int);
> insert into t1 values (1),(2),(3);
> select * from t1 where c>'' ; --get nothing(empty result)
> select * from t1 where c<''; --get result set:1,2,3
>
create table t1(c int);
insert into t1 values (1),(2),(3);
select * from t1 where c>'' ; --get nothing(empty result)
select * from t1 where c<''; --get result set:1,2,3
create table t2(c char);
insert into t2 values (1),(2),(3);
select * from t2 where c>'';--get correct result set:
9 matches
Mail list logo
