如何将此SQL子查询包含在绝对数字的值中？

Question

我有这个为Access DB编写的查询.

queryText = "SELECT Technicians.ID, firstName, lastName, Technicians.[Zone],
COUNT(technicianAssignedId) AS JobsDone, 
MAX(Faults.timeCompleted) AS LastJobTime,
MIN(Technicians.[Zone] - & faultZone &) AS Distance ' MIN has no use
FROM Technicians LEFT OUTER JOIN Faults ON
Technicians.ID = Faults.technicianAssignedID 
WHERE Specialization = '" & specialization & "'
`AND Availability = 'available' 
GROUP BY Technicians.ID, firstName, lastName, Availability,` Technicians.[Zone], Specialization 
ORDER BY 7 DESC"

我有这个获得绝对价值

SELECT CASE
WHEN value < 0 THEN value * -1
ELSE number *1 END
AS VALUE
FROM DB;

现在,带有Distance别名的列可能最终为负数,我需要使用(*-1)作为正数,但我无法弄清楚如何将它们组合在一起.

谢谢你的帮助

Answer 1

尝试

ABS(Technicians.[Zone] - & faultZone &) AS Distance 

参见ABS doc