Update connect-query-go.md

Replace

 tsql := "INSERT INTO TestSchema.Employees (Name, Location) VALUES (@name, @location); select convert(bigint, SCOPE_IDENTITY());"

with
       tsql := "INSERT INTO TestSchema.Employees (Name, Location) VALUES (@name, @location); "
       tsql += select isNull(SCOPE_IDENTITY(), -1);"

Premise:-

1) One cannot assume that insert succeeded and we have a valid scope_identity

2) if insert failed, then scope_identity will be null

3) Attempt to fetch later on and cast to int64, will subsequently fail

    var newID int64
    err = row.Scan(&newID)

Author: DanielAdeniji

articles/azure-sql/database/connect-query-go.md

@@ -194,7 +194,8 @@ Get the connection information you need to connect to the database. You'll need
            return -1, err
        }
 
-       tsql := "INSERT INTO TestSchema.Employees (Name, Location) VALUES (@Name, @Location); select convert(bigint, SCOPE_IDENTITY());"
+       tsql := "INSERT INTO TestSchema.Employees (Name, Location) VALUES (@Name, @Location); "
+       tsql += select isNull(SCOPE_IDENTITY(), -1);"
 
        stmt, err := db.Prepare(tsql)
        if err != nil {