Oracle ERP表复合索引的使用
MTL_ONHAND_QUANTITIES_DETAIL索引如下:
i1:INVENTORY_ITEM_ID, ORGANIZATION_ID, SUBINVENTORY_CODE, PRIMARY_TRANSACTION_QUANTITY
i2:ORGANIZATION_ID, SUBINVENTORY_CODE, LOCATOR_ID, LPN_ID
i3:ORGANIZATION_ID, INVENTORY_ITEM_ID, COST_GROUP_ID
我现在关联其它表用到 INVENTORY_ITEM_ID(i1), (ORGANIZATION_ID, SUBINVENTORY_CODE)(i1、i2共有), LOCATOR_ID(i2)
这几个字段查询,但是跟踪了一下好像没有用到索引,是全表扫描的,请问该咋整,我是否该再建一个复合索引?
[解决办法]