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How to avoid duplicate records in Entity Framework?
Try using ROW_NUMBER () OVER () SQL to create a column with unique values, but did not work. We need to insert a field more, an FK for another table in the view so that it could add as an additional training for mebro EntityKeyMembers Elimite and so the problem of repetition.
How to create a view in Entity Framework?
When including a view in your Entity Model, the model seems to simply use the first not-nullable columns as primary key (as all columns used in the primary key should be non-nullable). You only need to do: context.viewname.AsNoTracking ().Where (x => x.ColumnName != null);
How to create an entity key in SQL?
Try using ROW_NUMBER () OVER () SQL to create a column with unique values, but did not work. I did the same thing but to make it work i need to open the EDMX model and then select a this column as an Entity Key.
What is the FK column in Entity Framework?
Thus, if the problem persists in this kind of situation, the solution is to insert a FK column for it to be MEMBERS of the fields that form the EntityKey of the table. It indicates to the Entity Framework that can be the primary key automatically.
How to create match profile for Duplicate Check?
This will trigger the creation of attribute views (standard attribute view + reuse attribute view which you can extend/change) on the HANA DB, as well as a search rule set artifact. You can double check the outcome in HANA Studio in your development package. This summarizes what you should see: 3. Create Match Profile for Duplicate Check
How to create a relationship between two lists?
To create a relationship between two lists, you create a lookup column in the source list that retrieves (or “looks up”) one or more matching values from a target list. Once you create this lookup column (the primary column), you can continue to add additional columns (secondary columns) from the target list to the source list.
When do I create a lookup column that enforces a relationship?
A lookup column that enforces a relationship must also have an index. When you create a lookup column that enforces a relationship, you might be prompted to create the index.
Can a unique column be used in a lookup column?
The following table summarizes what column types can and cannot be used to create unique columns. To create a relationship between two lists, you create a lookup column in the source list that retrieves (or “looks up”) one or more matching values from a target list.