Current purchases table structure:

id                   | int(11)                        | NOT NULL   | Default: NULL
supplier_id          | int(11)                        | NULL       | Default: NULL
invoice_no           | varchar(50)                    | NULL       | Default: NULL
total_amount         | decimal(12,2)                  | NULL       | Default: NULL
status               | enum('pending','received','cancelled') | NULL       | Default: pending
received_date        | datetime                       | NULL       | Default: NULL
received_by          | int(11)                        | NULL       | Default: NULL
created_at           | timestamp                      | NOT NULL   | Default: current_timestamp()

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Checking for required columns...

✓ received_date column exists
✓ received_by column exists

✓ Database is already up to date!