Major Error 0x80040E14, Minor Error 25501

> IF NOT EXISTS (SELECT *

FROM INFORMATION_SCHEMA.COLUMNS

WHERE TABLE_NAME = 'DELIVERYINTRIP'

AND COLUMN_NAME = 'PODID')

ALTER TABLE DELIVERYINTRIP ADD PODID UNIQUEIDENTIFIER NULL

There was an error parsing the query. [ Token line number = 1,Token line offset = 1,Token in error = IF ]