摘要: 横版流程卡 优化(复杂SQL的优化),留档一、横版流程卡原SQL 1 SELECT SOL.*,para.* FROM 2 (SELECT 3 A.SERIAL_NUMBER, 4 SUM(casewhen B.spc_item='Speed'and SUBS...阅读全文
posted @ 2015-01-23 18:45 Gerrard 阅读(126) 评论(0) 编辑