具有和存储过程异曲同工之妙，就是写的时候稍微复杂了些，但是比写个存储过程要省事的多啦。
它的边界值的设置比存储过程要省事的多。
哈哈^_^
SELECT
SOA_GET_NENAME(NE_ID,NE_TYPE) VIRCOLUMN_0,
FIRST_RESULT VIRCOLUMN_1,
G42 VIRCOLUMN_2,
CASE
WHEN (G42 >= 93 )
THEN 5
WHEN (G42 >= 88 )
THEN 3 + (G42 - 88)*0.4
WHEN (G42 <= 78 )
THEN 0
WHEN (G42 <= 88 )
THEN 3 + (G42 - 88)*0.3
ELSE 0
END ,
G66 VIRCOLUMN_23,
case
WHEN (G66 >= 130 )
THEN 5
WHEN (G66 >= 100 )
THEN 3 + (G66 - 100)*0.4/6
WHEN (G66 <= 40 )
THEN 0
WHEN (G66 <= 100 )
THEN 3 + (G66 - 100)*0.3/6
ELSE 0
END
FROM CHK_GRADE_FACTHOUR
WHERE ( (chk_grade_facthour.COMPRESS_DATE = '2006-02-14') ) AND (chk_grade
_facthour.NE_TYPE IN (10000,10003) AND chk_grade_facthour.NE_ID IN (-1744891292,1948613501,867223656
,-402456014,-1128953347,91461549,414603468,-1458085134,-578147474,1478501655,202839087,-75534827)) a
nd (1=1)
ORDER BY 1,2
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欢迎 
Informix case语句的妙用
