dynamic sql generation is not supported against multiple base tables

Question

I tried to add a new row to a Table in an SQL DB, but I had a problem :

dynamic sql generation is not supported against multiple base tables

Answer 1

Add DISTINCT in your select statement with inner join.

This will solve the issue.

like Select Distinct Employee.Ecode, .........

Answer 2

Change your select query and add distinct with inner join.

For example there are two query from which you can understand that what I want to tell you

Wrong query

select iop.pob_id, iop.pob_product_id, iop.pob_qty, iop.pob_unit_id
    , iop.pob_rate, iop.pob_value, iop.pob_fiscalyear_id
    , **p.product_desc** as orderBy from inv_product_open_balc iop
left join inv_product p on iop.pob_product_id = p.product_id
where p.product_desc like 'Air Freshner%' and iop.pob_fiscalyear_id = 3

Correct query

select distinct iop.pob_id, iop.pob_product_id, iop.pob_qty
    , iop.pob_unit_id, iop.pob_rate, iop.pob_value, iop.pob_fiscalyear_id
    , **(select Product_desc from** inv_product p where p.product_id = iop.pob_product_id )as orderBy
from inv_product_open_balc iop
inner join inv_product p on iop.pob_product_id = p.product_id
where p.product_desc like 'Air Freshner%' and iop.pob_fiscalyear_id = 3

Answer 3

You can't use an SqlCommandBuilder here:

Automatically generates single-table commands that are used to reconcile changes made to a DataSet with...

The key words here being "single-table". It has no way to reverse engineer from the SELECT statement how a specific update should be applied (e.g. if you NULL all of the columns from the right side of a left join, should it delete the row, or set each column to null.

You need to author appropriate Insert, Update and Delete commands on the SqlDataAdapter.

Answer 4

With SqlCommandBuilder you can generate CRUD operation on entity

Requirement of use is to define Select command before inserting , and include in the select command your primary Key.

Link : http://msdn.microsoft.com/fr-fr/library/system.data.sqlclient.sqlcommandbuilder(v=vs.80).aspx

MSDN Definition : Automatically generate Transact-SQL statements to update single table

Nota : In your Update selectCommand, you defined left join query, and so you can create left join query, replace this query with just select.