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// 重点 mbeg=mend 这两个字段相同的查询出来
SELECT * from product(表名) where mbeg = mend and `status` = 'system' and statusbm = 'b' and product_num=8 and send_id=0;
// 重点 mbeg=mend 这两个字段相同的查询出来
SELECT * from product(表名) where mbeg = mend and `status` = 'system' and statusbm = 'b' and product_num=8 and send_id=0;