采购订单和 采购申请 的表

1. 采购订单是由EKKO和EKPO两个主表一起构成的，然后另外三个表也可能用到;
   以下是这三个表之间的关系.
   

2. ( EBAN and EKPO) 这两个表组成了采购申请单;
   

EKKO(Purchasing Document Header)
采购订单表头
Below is the standard documentation available and a few details of the fields which make up this Table. You can view further information about SAP EKKO Table and the data within it using relevant transactions such as SE11, SE80 or SE16. Also check out the Comments section below to view or add related contributions and example screen shots.

EKPO (Purchasing Document Item)
采购订单行项目

MARC( Plant Data for Material)
工厂物料表
MARC is a standard SAP Table which is used to store Plant Data for Material data and is available within R/3 SAP systems depending on the version and release level.
MARA (General Material Data)
常规物料数据
MARA is a standard SAP Table which is used to store General Material Data data and is available within R/3 SAP systems depending on the version and release level.
EINA(Purchasing Info Record: General Data)
采购信息记录 - 一般数据
EINA is a standard SAP Table which is used to store Purchasing Info Record: General Data data and is available within R/3 SAP systems depending on the version and release level.

下次采购信息记录，我要问一下她.