Chuck,

Maybe it's just me, but I'm not sure what you're asking here.

You wrote:

> Hi again i didn't get any feed back regarding MqSql boolean
> field/datatype i note that it is evident in version 4.1 my version is
> 3.23 ok.

http://www.mysql.com/doc/C/o/Column_types.html

    BIT
    BOOL
    CHAR These three are synonyms for CHAR(1).

> Plz advice, as there is nothing in the pdf.manual about bool (boolean
> true/false values) Only something is regards to MySql keywords bool.
> Thus i have used two char's(yes),(no) field types but i would prefer to
> use a true/false values.

For integers, null is null, 0 is false, anything else is true.

> Also is this correct syntax
>
> create table vol_firstaid  (
>        vol_firstaid_yes char (yes) ,
>         vol_firstaid_no char (no) ) ;
>
>  currently got the char arguments constraints empty.

Are 'yes' and 'no' reserved words? Usually, I think I would put an integer
in the parentheses.

If I only need the values 'Y' and 'N', then I don't think I would use two
fields. You might want to look at the SET and ENUM types (same manual page
as above). Or you may just want to use 0 and 1 in a TINYINT field. Depends
on what you need.

I note that with neither SET nor ENUM can you define 'FALSE' as zero.

Joel Rees
Alps Giken Kansai Systems Develoment
Suita, Osaka


> Come on - let me out of my misery as im a PostgreSql man but like this
> tool very much and at the moment creating a work project in both
> flavours as back end  to out front end internet/intranet proberly Java
> ServerPages using DBTags (sql) Jakarta-tomcat v4.02. Thus i need your
> advice.
>
> Cheers Chuck Amadi
> Systems Programmer

sql, query



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