+1 for mapping dates using dtos()
Dave
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-----Original Message-----
From: ProFox <[email protected]> On Behalf Of Ted Roche
Sent: 13 June 2018 18:49
To: [email protected]
Subject: Re: VFP9, SqlServer and NULL values
NULL means "I don't know" and <<NULL>> in a textmerge returns nothing.
In my VFP 9, it returned .NULL. as the second argument, which no server would
understand :)
try:
SET NULLDISPLAY TO 'NULL'
before the textmerge.
Also, this might work better if you formatted the date you are inserting using
DTOS and wrapped it in single quotes.
On Wed, Jun 13, 2018 at 1:26 PM, Rafael Copquin <[email protected]>
wrote:
> Thank you. It works well as you suggested but:
>
> cName = 'RAFAEL'
> vDOB = NULL
>
> cCmd = 'insert into mydatabase.dbo.employees(name,dob) values
> (?cName,?vDOB)'
> sqlexec(nHandle,cCmd)
>
> the above works, the below construct does not:
>
>
> Text to cCmd textmerge noshow flags 2 pretext 15
>
> insert into mydatabase.dbo.employees(name,dob) values
> ('<<cName>>',<<vDOB>>)
>
> endtext
>
> sqlexec(nHandle,cCmd)
>
>
> Why?
>
> I use text.. endtext most of the time, especially when the statements
> are very long and occupy several lines.
>
> Character strings are surrounded with '<<>>', numbers are <<>> and
> dates are '<<cDate>>' (dates are converted to the form YYY-MM-DD)
>
> Rafael
>
>
>
> 2018-06-13 11:49 GMT-03:00 Frank Cazabon <[email protected]>:
>
>> Don't pass the dates as strings, use parameters and set the blank
>> date parameter to null prior to sending it:
>>
>> PRIVATE myDate AS Date
>>
>> myDate = DATE()
>>
>> IF EMPTY(m.myDate)
>>
>> m.myDate = NULL
>>
>> ENDIF
>>
>> m.lcSQL = "INSERT INTO myTable (myDateField) VALUES (?m.myDate)"
>>
>>
>> Frank.
>>
>> Frank Cazabon
>>
>>
>> On 13/06/2018 10:30 AM, Rafael Copquin wrote:
>>
>>> I have a SQL Server 2012 Express table with a field called DOB of
>>> type DATE
>>>
>>> The field accepts NULL values and does not have a default value..
>>>
>>> To insert the DOB from VFP I transform it to the form 'YYYY-MM-DD'
>>> and send it as a character string.
>>>
>>> However, if the DOB is empty, the only way VFP inserts the record is
>>> if the empty value is sent as ''
>>> and the DOB field displays '1900-01-01' which is the value inserted.
>>>
>>> I want to insert NULL in the field, not '1900-01-01'
>>>
>>> If I use the SQL Server Management Studio, I can insert the NULL
>>> value directly with this expression:
>>>
>>> insert into mydatabase.dbo.employees(name,dob) values( 'John
>>> Doe',NULL)
>>>
>>> However, this command, from VFP, does not insert the record:
>>>
>>> cCmd = [insert into mydatabase.dbo.employees(name,dob) values(
>>> 'John
>>> Doe',NULL) ]
>>>
>>> sqlexec(nHandle,cCmd)
>>>
>>>
>>> How can I get the field to get the NULL value?
>>>
>>> TIA
>>> Rafael Copquin
>>>
>>>
>>> --- StripMime Report -- processed MIME parts ---
>>> multipart/alternative
>>> text/plain (text body -- kept)
>>> text/html
>>> ---
>>>
[excessive quoting removed by server]
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