abap performance optimization
摘要：
1、使用where语句 不推荐 Select * from zflight. Check : zflight-airln = ‘LF’ and zflight-fligh = ‘BW222’. Endselect. 推荐 Select * from zflight where airln = ‘LF’ and fligh = ‘222’. Endselect. 2、使用聚合函数 不推荐 Max... 阅读全文
posted @ 2007-12-28 12:29 NextStep-V 阅读(212) 评论(0) 推荐(0)
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