ORACLE截取字符串

SELECT msi.organization_id
      ,msi.inventory_item_id
      ,msi.segment1
      ,msi.description
      ,substr(msi.segment1, 1, length(msi.segment1) - 1) base_item_num
      ,substr(msi.segment1, -1) version_num
  FROM mtl_system_items_b msi
 WHERE msi.item_type = 'FG';

83 61437 100101688C0699A 普通板|VA10001622206 100101688C0699 A

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