alter table alu_kingdee_sales_receipt_detail ADD kingdee_qty [DECIMAL]
alter table alu_kingdee_sales_receipt_detail ALTER COLUMN kingdee_qty DECIMAL(18,2);
ALTER TABLE alu_kingdee_sales_receipt_detail DROP CONSTRAINT DF__alu_kingd__kingd__55B29C15
原文：https://www.cnblogs.com/gzhbk/p/14338028.html