Create Costtable for scrapped part and rework parts after ECN implementation, lead old revision parts rework or scrap issue.
在ECN执行后为报废和返工材料创建费用表格,领导旧版本物料的返工和报废事宜。
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If the inner table does not have an index, the database server will compare the cost of building an index on the table to the cost of a sequential scan, and will choose the one with the least cost.