ragtime
ragtime
/ gist:2cfb981fbc5676182d64
Created
February 12, 2015 07:51
simple example of a group definition for the relational algebra calculator
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| group: bank example | |
| description[[ the data for this dataset was generated using <http://www.generatedata.com/> | |
| * the relation _Customers_ contains basic information about the customers of the bank. | |
| * the relation _Accounts_ contains the basic information of a single account. Note that a customer can have any number of accounts. | |
| * the relation _PremiumCustomers_ contains the customer-ids of all customers with a total balance over 1000 | |
| ]] | |
| Customers = { cid firstname lastname |