Devart Forums

hi,

What I am doing is not using table adapters / data adapters to create the dataset instead using command schema.

I follow the following procedure

1. select data set name
2. select connection
3. select data source type as NONE (Command Schema)
3. In data table add table that comes default as Table1
4. From data source dropdown select command schema it prompts me for the command
5. I type in the command as
select col1 , col2 from mytable where col3 = ':parameter1'
6. I select "Select Parameter Tab" add a parameter as parameter1 and give its data type bigint,
direction input


Now go to previw the data it gives me a error saying Parameter missing



Am I doing something wrong ??

don't quote parameter:

select col1 , col2 from mytable where col3 = :parameter1

and the parameter will be created automatically.

I cannot reproduce the error.
Try deleting quote signs next to the parameter.Please send me a small test project to reproduce the problem.
It is desirable to use 'emp' and 'dept' database objects, otherwise include the
definition of your own database objects.
Do not use third party components.
If it is impossible for you to create the test project, send us a piece of
your code where the error occurs.

what to do if using reg exp like This would run in any postgresql database as I dont think you need a test case for this.
Create a similar query let col3 has values like 2000 , 20000 , 2001,208976

Try this SELECT string:

sorry for the late reply

Alexey.mdr wrote:Try this SELECT string:

Code: Select all

select * from TABLE where COLUMN1 = '~^' || :parameter1

that does not pull any record from database.

moreover how will it help we are just piping the parameter also we using a "=" which does not make any sence in first place.

the operator that I want to use is ~'^ ' not =


looking for a solution

I've sent you an e-mail.
Please try testing your SELECT query with a simple regular expression included.

it still does not work .

what to talk about the wizard I am not even able to run a query with typed command. i.e manually written code.


I have a strong fealing we are missing this capability in the .net adapter

Please send me (alexeyman*crlab*com) your project to reproduce the problem.
Do not use third party components.

I have send you the test case. hope you received it . If not please revert

We have received the email with attached test.
Thank you for the test sample.
We are investigating the issue now.
I will let you now on any available results in the nearest time.