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下面的 sql 查询适用于 CASE WHEN 中的所有检查，接受某些电子邮件。当我每次运行查询检查电子邮件时，它有时会起作用，有时却不起作用。我已经完成了 RTRIM(LTRIM(m.Email)) 但这也不起作用。比较电子邮件时，我需要做些不同的事情吗？

exec BuildingPros.uspGetEmployees 1697,'Email','someone@somewhere.net'


alter proc BuildingPros.uspGetEmployees
@ProID INT,
@Where  VARCHAR(12) = NULL,
@Equals VARCHAR(25) = NULL
AS
      SELECT m.UserId,u.UserName,e.NonProID'ID',m.Email,c.FirstName'FName',c.LastName'LName',
                      ISNULL(c.Title,'NA')'Title',z.ZIPCode'Zip', p.Phone
        FROM     Person.UtbAddressesutbContact ac JOIN
                          Person.utbAddresses a ON ac.AddressID = a.AddressID JOIN 
                          Person.utbContact c ON ac.ContactID = c.ContactID JOIN
                          Person.utbZipCodes z ON z.ZipCodeID = a.ZipCodeID JOIN
                          Person.utbCitys city ON city.CityID = z.CityID JOIN
                          Person.utbContactUtbPhones cp ON c.ContactID = cp.ContactID JOIN
                          Person.utbPhones p ON p.PhoneID = cp.PhonesID JOIN
                          NonPros.utbNonProsUtbAddresses ea ON a.AddressID = ea.AddressID JOIN
                          aspnet_Membership m JOIN
                          NonPros.NonPros e ON m.UserId = e.UserID ON ea.NonProID = e.NonProID JOIN
                          BuildingPros.utbProfessionalsUtbNonPros pe ON e.NonProID = pe.NonProID JOIN
                          dbo.aspnet_Users u ON u.UserId = m.UserId
                WHERE
                CASE @Where
                        WHEN 'Email'    THEN m.Email
                        WHEN 'Name'     THEN c.LastName             
                        WHEN 'Zip'      THEN z.ZIPCode
                        WHEN 'ST'       THEN z.StateCD
                        WHEN 'Title'    THEN c.Title
                        WHEN 'TimeZone' THEN z.TimeZone
                        WHEN 'City'     THEN city.City
                END = @Equals
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1 回答 1

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我怀疑它适用于长度小于 26 个字符的电子邮件，而长度为 26 个字符或更多字符的电子邮件会失败。VARCHAR(25)电子邮件地址是不够的。

于 2012-12-07T04:33:43.697 回答