customer_dimension
This table contains information about all the retail chain’s customers.
	This table contains information about all the retail chain’s customers.
| Column Name | Data Type | NULLs | 
| customer_key | INTEGER | No | 
| customer_type | VARCHAR(16) | Yes | 
| customer_name | VARCHAR(256) | Yes | 
| customer_gender | VARCHAR(8) | Yes | 
| title | VARCHAR(8) | Yes | 
| household_id | INTEGER | Yes | 
| customer_address | VARCHAR(256) | Yes | 
| customer_city | VARCHAR(64) | Yes | 
| customer_state | CHAR(2) | Yes | 
| customer_region | VARCHAR(64) | Yes | 
| marital_status | VARCHAR(32) | Yes | 
| customer_age | INTEGER | Yes | 
| number_of_children | INTEGER | Yes | 
| annual_income | INTEGER | Yes | 
| occupation | VARCHAR(64) | Yes | 
| largest_bill_amount | INTEGER | Yes | 
| store_membership_card | INTEGER | Yes | 
| customer_since | DATE | Yes | 
| deal_stage | VARCHAR(32) | Yes | 
| deal_size | INTEGER | Yes | 
| last_deal_update | DATE | Yes |