The usp_GetTwoBOMTestData runs the Transact-SQL stored procedure uspGetBillOfMaterials twice to recursively query for the bill of materials for two products specified as parameters to the usp_GetTwoBOMTestData stored procedure.

• usp_GetTwoBOMTestData两次运行Transact-SQL存储过程uspGetBillOfMaterials,以通过递归方式查询两种产品的物料清单,这两种产品已被指定为usp_GetTwoBOMTestData存储过程的参数。