Hi,
I read the topic from JROdden and this case is similiar but...
I got several varchar fields with
values like
1.2
1.3
... these I can covert with
select CONVERT(dec(5,2), fieldname) as fieldname
In fact I also solved undefined- and NULL-values with.
CONVERT(decimal(12, 2), CASE WHEN GESCHKOSTMAX IS NULL OR
GESCHKOSTMAX < '0' THEN '0' ELSE GESCHKOSTMAX END) as GESCHKOSTMAX,
But now there are values like
1,4 and these ones neither CONVERT nor CAST will handle.
I tried the
SELECT DISTINCT KMPAUSCHALE
FROM extr_INTFIRMA
WHERE (isnumeric(KMPAUSCHALE) = 1)
and get
0,40
0.25
0.30 and so on...
The error is:
[Microsoft][ODBC SQL Driver][SQL Server]Error converting datatype varchar to decimal. (or float or numeric (whatever I tried))
I think the easiest way would be to insist on higher data quality but
I also would like to solve this interesting challenge.
Thanks for any hints
By the way, I followed rudys link to
http://rudy.ca/afdb.html
and now I know how I could protect myself !!!!
There must be a voice in my head saying:
Try the db-forum, try it and stay happy... ;-)
best regards and have fun with new year eve.
MichaelWhy are you worried about < 0? And how do you now they will translate to 5,2?
You should be more worried about other chars that don't translate...
SELECT CONVERT(float,ISNULL(REPLACE(GESCHKOSTMAX,',',',') ,0))
FROM extr_INTFIRMA
WHERE ISNUMERIC(REPLACE(GESCHKOSTMAX,',',','))=1
My question to you is...what do you do with the data that doesn't fit this profile?
You're exclusing an entire population of potentially valid data...
Yes you should more tightly define the columns datatype...
It's probably going to require data cleaning though...|||Originally posted by Michael Kaiser
By the way, I followed rudys link to
http://rudy.ca/afdb.html
and now I know how I could protect myself !!!!
:cool:|||Originally posted by r937
:cool:
Hi Brett,
thank you very much for that SQL-command.
I tried
SELECT CONVERT(decimal(15, 4), ISNULL(REPLACE(HERUMSATZWELT, ',', '.'), 0)) AS Expr1
FROM extr_INTFIRMA
WHERE (ISNUMERIC(REPLACE(HERUMSATZWELT, ',', '.')) = 1)
(please note the point I replaced) and it worked well.
Nevertheless there are some field which do not contain NULLS.
The ASCII(fieldname) gives me NULL as result.
So I guess this field is "not defined".
This is the reason why I' m worried about < 0.
All "undefined" went to "0".
Not very elegant but it worked...
best regards
Michael|||Originally posted by Michael Kaiser
Nevertheless there are some field which do not contain NULLS.
The ASCII(fieldname) gives me NULL as result.
So I guess this field is "not defined".
This is the reason why I' m worried about < 0.
All "undefined" went to "0".
Not very elegant but it worked...
best regards
Michael
I don't understand...ISNULL() Will only give you a 0 if the value is NULL
And what is ASCII(fieldname) for?
And I don't understand "undefined"
But hey, as long as it work
Ihr Willkommen|||Hi Brett,
the data are coming from a web-frontend into an access-db.
Obviosly the user don't have to fillout all questions and therefore
some fields remain empty.
Others change to "NULL".
I don't know why.
I imported the data to SQL server and
checked them with select distinct
I get two "empty" fields in the result.
One contains "NULL" the other "nothing" ?
I tried ASCII(fieldname) to search for "nonvisible" data but
this ASCII-command results in NULL.
When trying your command it fails because of this empty fields.
I checked the SQL online help and found the
NonEmpty function but that will not work within a sql-command
(in my view)
Whatsoever...
now it is time to go to a new years eve party...
I will try it again next year!!!
By the way...
your welcome = Ihr Willkommen
is very, very strange - hihi -
your welcome best fits in german - gern geschehen -
But I get the idea.
Thanks for your help and tons of fun the next hours...
Michael|||und einen guten rutsch ins neue jahr !!
rudy|||Hey, that's what I get for a google translation...
anyway...happy new year!
And what you're describing is an empty string, which is not null
SELECT COUNT(*)
FROM extr_INTFIRMA
WHERE GESCHKOSTMAX = ''
Should show you how many
Have a liter or 2 for me!|||Rudy - I tried selling my version of that device but no luck. I have been wearing mine for several years now - and I feel so much safer today - no aliens talking in my head anymore ... :-)
Thanks for posting that - I have not seen that for a couple of years now and it always makes me laugh.
