/*
Table: batches

Columns:
    batchID int
    startDate datetime
    endDate datetime
    batchName varchar
    batchType int
    discountType int
    priority int
    owner varchar

Depends on:
    batchType

Use:
This table contains basic information
for a sales batch. On startDate, items
in batchList with a corresponding batchID
go on sale (as specified in that table) and
with the discount type set here. On endDate,
those same items revert to normal pricing.
*/