+1 for mapping dates using dtos()
Dave
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-----Original Message----- From: ProFox profox-bounces@leafe.com On Behalf Of Ted Roche Sent: 13 June 2018 18:49 To: profox@leafe.com 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 rafael.copquin@gmail.com 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 frank.cazabon@gmail.com:
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 = NULLENDIF
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
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