Question

I have this little question that’s been on my mind for a while now.

Here it goes:

Is it possible to temporary disable the Auto_Increment on the column ID.

So that I can add a new row to the table and being able specify the ID value when inserting the row.

And then in the end enable the Auto_Increment again, and let do its work as usual?

And if its possible how can I do it?

The table structure is very simple

Column name (attributes)

ID (Primary Key, Auto Increment, int, not null)
Name (nvarchar(100), not null)

Note:

• The table name is: People.
• Let’s also consider that the table already has data and cannot be changed.
• The database server is SQL Server CE.
• The SQL commands will be executed in a C# program, if it’s of any help.

I really hope its possible, it would come very handy.

Thanks

EDIT

SqlActions SqlActions = new SqlActions();

SqlCeCommand SqlCmd = new SqlCeCommand("SET IDENTITY_INSERT People ON", SqlActions.Connection());

try
{
    SqlCmd.ExecuteNonQuery();
}
catch (SqlCeException Error)
{
    Console.WriteLine(Error.ToString());
}

string query = "INSERT INTO People SET (ID, Nome) VALUES (@ID, @Nome)";

SqlCeCommand SqlInsert = new SqlCeCommand(query, SqlActions.Connection());

SqlInsert.Parameters.AddWithValue("@ID", 15);
SqlInsert.Parameters.AddWithValue("@Nome", "Maria");

try
{
    SqlInsert.ExecuteNonQuery();
}
catch (SqlCeException Error)
{
    Console.WriteLine(Error.ToString());
}

The connection string is working, I have tried it.

He reports:

There was an error parsing the query.
[ Token line number = 1,Token line
offset
= 20,Token in error = SET ]

SOLUTION thanks to OrbMan

        SqlActions SqlActions = new SqlActions();

        SqlCeCommand SqlCmd = new SqlCeCommand("SET IDENTITY_INSERT People ON", SqlActions.Connection());
        try
        {
            SqlCmd.ExecuteNonQuery();

            string query = "INSERT INTO People (ID, Nome) VALUES (@ID, @Nome)";
            SqlCmd.CommandText = query;
            SqlCmd.Parameters.AddWithValue("@ID", 15);
            SqlCmd.Parameters.AddWithValue("@Nome", "Vania");
            SqlCmd.ExecuteNonQuery();
        }
        catch (SqlCeException Error)
        {
            Console.WriteLine(Error.ToString());
        }

Answer 1

I believe you can use SET IDENTITY_INSERT. I am not sure if this works in all versions.

Update 2:

Try this version:

SqlActions SqlActions = new SqlActions();
SqlCeCommand SqlCmd = new SqlCeCommand("SET IDENTITY_INSERT People ON", SqlActions.Connection());
try
{
    SqlCmd.ExecuteNonQuery();
    string query = "INSERT INTO People (ID, Nome) VALUES (@ID, @Nome)";
    SqlCmd.CommandText = query;
    SqlCmd.Parameters.AddWithValue("@ID", 15);
    SqlCmd.Parameters.AddWithValue("@Nome", "Maria");
    SqlCmd.ExecuteNonQuery();
}
catch (SqlCeException Error)
{
    Console.WriteLine(Error.ToString());
}