Major SAP MM and Purchase Order Tables Table MARA, EKKO

 I notice whenever when archive are being scoped, important tables needs to be identified and when i was searching the below table it was interesting as i could and had gotten it from Early watch alerts documents and also by some guru's in some forums long time ago and can't really remember now. 

But In SAP, how can I get a list of tables?

Using the t-code SE16, press f4 on the table name, then click on info system and type * in the table name. I don't have access to SAP right now, however I believe the table DD02T has a list of all the tables. Look at the table with SE16.

These are the SAP Material Management tables

• MARA – General Data, material type.
• MAKT– Short Texts, descriptions.
• MARM– Conversion Factors.
• MVKE – Sales Org, distribution channel.
• MLAN – Sales data, tax indicator, tax.
• MARC – classification.
• MBEW – Plant Planning Data.
• MLGN – Valuation Data.
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SAP Purchase Order Tables , and there are more

• EKKO - Purchasing Document Header.
• EKPO - Purchasing Document Item.
• EKBE - History per Purchasing Document.
• EKKN - Account Assignment in Purchasing Document.