返回行，当两个条件为真时

Question

以下查询可以正常返回数据：

SELECT DISTINCT
    CONVERT(varchar, b.bookindt, 101) AS [book-in date],
    b.bookinno AS [book-in no.],
    dbo.fn_getoffensedesc(o.offenseid, o.probviolation,
                          (select offense from trdcode61 
                           where code61id = o.code61id), o.goc) AS offensedescription,
    o.PrimaryOffense AS [Primary Offense],
    trd.l_d AS [offense l/d],
    p.firstname AS [first name],
    p.lastname AS [last name]
FROM
    tblpeople p
LEFT OUTER JOIN 
    tbloffense o (NOLOCK) ON o.personid = p.personid 
LEFT OUTER JOIN 
    tblbookin b (NOLOCK) ON b.bookinid = o.bookinid 
LEFT OUTER JOIN 
    trdcode61 trd (NOLOCK) ON trd.code61id = o.code61id 
WHERE
    dbo.fn_isinjailbybookinid(b.bookinid) = 1 
    -- AND b.bookinno='21042173'
    AND (trd.l_d LIKE 'F%' OR trd.l_d LIKE 'M%')
ORDER BY
    p.lastname, p.firstname 

为了更清楚，这里是单个“bookinno”的结果截图：

我需要查询方面的帮助，它会查看“预订号”。列并且如果“Offense l/d”列包含(trd.l_d like 'F%' AND trd.l_d like 'M%')，则返回该“预订编号”。结果。

当我尝试使用 AND 运行时，结果为零。

我确实有“预订号”。只有“F%”或只有“M%”。

不胜感激。

问候， 耶

Answer 1

您可以使用您的条件过滤结果集，按bookinno 分组并在HAVING 子句中设置条件，以便这两个条件都适用于bookinno：

SELECT b.bookinno AS [book-in no.]
FROM tblpeople p
INNER JOIN tbloffense o ON o.personid = p.personid 
INNER JOIN tblbookin b ON b.bookinid = o.bookinid 
INNER JOIN trdcode61 trd ON trd.code61id = o.code61id 
WHERE dbo.fn_isinjailbybookinid(b.bookinid) = 1 
  AND (trd.l_d LIKE 'F%' OR trd.l_d LIKE 'M%')
GROUP BY b.bookinno
HAVING COUNT(DISTINCT LEFT(trd.l_d, 1)) = 2;

请注意，此要求的连接应该是 INNER 而不是 LEFT，因为您不希望结果中有任何不匹配的行。