What am I doing wrong in my database?

Question

I am frequently getting this SQL error when trying to run my code. What is wrong with my database?

Database code in Visual Studio 2012:

CREATE TABLE [dbo].[testtbl] 
(   
    [Id]   INT        NOT NULL IDENTITY,
    [name] NCHAR (10) NULL    
);

The error is:

An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
An explicit value for the identity column in table 'testtbl' can only be specified when a column list is used and IDENTITY_INSERT is ON.

Thanks for any advice.

Answer 1

Clearly you are trying to insert a value into [Id] . That field is IDENTITY which means the database generates it for you. Adjust your insert statement to exclude the [Id] column.