Information Structure
| Item | Comment | 
|---|---|
| Database Column | 
             The name of the column in the SQL table.  | 
        
| Type | 
             The data type of the contents of the database column.  | 
        
| Size | 
             For types that have a maximum capacity, the upper limit is provided in parentheses.  | 
        
| Key | 
             The word “Key” appears when a column is a unique key field within the table. It is possible for several database columns to be part of the key, so that this indicator may appear for several columns in a table.  | 
        
| Generated ID | 
             This indicates that a numeric ID is assigned by the database.  | 
        
| Nullable | 
             If this indicator is present, the database column permits nulls.  | 
        
| Computed | 
             This indicator appears for columns that are automatically computed by the database.  | 
        
| Default | 
             If a column has a default value declared in the schema, this is specified at the end of the first set of details for the column.  | 
        
| Details | 
             Describes the data stored in the database column, including many of the indicators described above.  |