我现有的查询如下:
SELECT p.subcode as proc_subcode,
r.subcode as rv_subcode,
r.rlv,
f.cfid,
f.geozip,
p.proc,
p.sh_descr,
f.begproc,
f.endproc,
p.descr,
r.modi,
f.per25
FROM user.code p, user.relative r, user.frequency f
WHERE f.ID = 'XOF'
AND f.GEOZIP = '200'
AND f.REL_DATE = '10-SEP-13'
AND p.proc IN ('A0021', 'A0080', 'A0090', 'A0100', 'A0110', 'A0120',
'A0130', 'A0140', 'A0160', 'A0170', 'A0180', 'A0190',
'A0200', 'A0210', 'A0225')
AND r.ID = f.ID
AND f.REL_DATE = r.REL_DATE
AND f.ID = p.ID
AND f.REL_DATE = p.REL_DATE
AND p.proc = r.proc
AND p.proc between f.begproc AND f.endproc
AND (('A0021' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0021' AND
r.PROC = 'A0021' AND f.CFID = '00') OR
('A0080' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0080' AND
r.PROC = 'A0080' AND f.CFID = '00') OR
('A0090' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0090' AND
r.PROC = 'A0090' AND f.CFID = '00') OR
('A0100' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0100' AND
r.PROC = 'A0100' AND f.CFID = '00') OR
('A0110' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0110' AND
r.PROC = 'A0110' AND f.CFID = '00') OR
('A0120' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0120' AND
r.PROC = 'A0120' AND f.CFID = '00') OR
('A0130' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0130' AND
r.PROC = 'A0130' AND f.CFID = '00') OR
('A0140' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0140' AND
r.PROC = 'A0140' AND f.CFID = '00') OR
('A0160' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0160' AND
r.PROC = 'A0160' AND f.CFID = '00') OR
('A0170' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0170' AND
r.PROC = 'A0170' AND f.CFID = '00') OR
('A0180' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0180' AND
r.PROC = 'A0180' AND f.CFID = '00') OR
('A0190' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0190' AND
r.PROC = 'A0190' AND f.CFID = '00') OR
('A0200' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0200' AND
r.PROC = 'A0200' AND f.CFID = '00') OR
('A0210' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0210' AND
r.PROC = 'A0210' AND f.CFID = '00') OR
('A0225' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0225' AND
r.PROC = 'A0225' AND f.CFID = '00'))
ORDER BY p.proc, r.modi, f.REL_DATE asc
上面的查询效果很好,但是,我计划在范围内添加100个p.proc,例如。它就像A0021-A1000。所以,我想提高sql查询性能。
有人可以帮忙吗?
编辑1:
我想可能的解决方案是删除p.proc的IN子句并使用它们之间。我不确定最后的AND条件。
编辑2:
查询说明
我基本上使用geozip并传递代码来获取特定区域的所有医疗费用,例如。 A0021意味着手术代码& 200意味着纽约& 2013年9月10日是发布日期并获得名为XOF的产品的结果。
答案 0 :(得分:1)
首先
WHERE f.ID = 'XOF'
AND f.GEOZIP = '200'
AND f.REL_DATE = '10-SEP-13'
AND p.proc IN ('A0021', 'A0080', 'A0090', 'A0100', 'A0110', 'A0120',
'A0130', 'A0140', 'A0160', 'A0170', 'A0180', 'A0190',
'A0200', 'A0210', 'A0225')
AND r.ID = f.ID
AND f.REL_DATE = r.REL_DATE
AND f.ID = p.ID
AND f.REL_DATE = p.REL_DATE
AND p.proc = r.proc
AND p.proc between f.begproc AND f.endproc
AND (('A0021' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0021' AND
r.PROC = 'A0021' AND f.CFID = '00') OR
('A0080' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0080' AND
r.PROC = 'A0080' AND f.CFID = '00') OR
('A0090' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0090' AND
r.PROC = 'A0090' AND f.CFID = '00') OR....
查询中的p.proc = r.proc。所以你不需要每次都在这些陈述中写它:
('A0090' BETWEEN f.BEGPROC AND f.ENDPROC AND p.PROC = 'A0090' AND
r.PROC = 'A0090' AND f.CFID = '00') OR
所有这些陈述中的也是f.CFID ='00'。您无需在每个语句中编写它。目前我认为您需要的只是:
WHERE f.ID = 'XOF'
AND f.GEOZIP = '200'
AND f.REL_DATE = '10-SEP-13'
AND p.proc IN ('A0021', 'A0080', 'A0090', 'A0100', 'A0110', 'A0120',
'A0130', 'A0140', 'A0160', 'A0170', 'A0180', 'A0190',
'A0200', 'A0210', 'A0225')
AND r.ID = f.ID
AND f.REL_DATE = r.REL_DATE
AND f.ID = p.ID
AND f.REL_DATE = p.REL_DATE
AND p.proc = r.proc
AND p.proc between f.begproc AND f.endproc
AND f.CFID='00'
这4个陈述
AND p.proc IN ('A0021', 'A0080', 'A0090', 'A0100', 'A0110', 'A0120',
'A0130', 'A0140', 'A0160', 'A0170', 'A0180', 'A0190',
'A0200', 'A0210', 'A0225')
AND p.proc = r.proc
AND p.proc between f.begproc AND f.endproc
AND f.CFID='00'
使所有这些BETWEEEN语句相同。
请检查您对数据的查询