我有一个 VS2010 .Net 4.0 Web 服务,它应该返回记录的 DataTable。直到今天,它似乎一直运行良好。如果我通过 SQL Server Management Studio 将 5 个参数(3 个整数和 2 个日期时间)传递给它,我会得到我期望的所有行。但是,当我通过服务运行并检查 ds.Fill(MyTable) 行上的变量时,某些行不会显示。
我刚刚注意到一些奇怪的事情,当我搜索 TagNumber 1-270 的项目时,我得到了 SSMS 和 .Fill 中的所有行。每当我尝试返回 TagNumbers 介于 271 和 300 之间的项目时,所有这些行都会显示在 SSMS 中,但它们都不会在 .Fill 中返回。我检查过的所有 300 多件作品都符合预期。
这是我的存储过程。我能说的并不特别。
ALTER PROCEDURE [dbo].[FetchLicenseReceiptData] (
@ForYear INT,
@StartNumber INT,
@EndNumber INT,
@StartDate DATETIME,
@EndDate DATETIME
)
AS
BEGIN
-- Also update udf GetLicenseReceiptData
SELECT
DISTINCT
-- License Fields
l.BarCode,
l.TagNumber,
l.Issued,
l.ForYear,
l.Fee,
l.WebOrderNumber,
lts.Name AS TagStyle,
CAST(CAST((l.ForYear + 1) AS VARCHAR) + '-01-31' AS DATETIME) AS RenewalDate,
-- Dog Fields
d.Name AS DogName,
d.BirthDate,
d.SpayNeuter,
d.Deceased,
lb.Name AS Breed,
lhl.Name AS HairLength,
lpc.Name AS PrimaryColor,
lsc.Name AS SecondaryColor,
lx.Name AS Sex,
-- Owner Fields
lt.Name AS Title,
o.FirstName,
o.Initial,
o.LastName,
-- Address Fields
a.Address1,
a.Address2,
a.City,
a.County,
ls.Abbreviation AS State,
a.ZipCode,
-- Contact Fields
jpi.PhoneNumber AS PrimaryPhoneNumber,
jpi.PhoneType AS PrimaryPhoneType,
jei.EmailAddress AS PrimaryEmail,
jei.EmailType AS PrimaryEmailType
FROM
data.License AS l
LEFT OUTER JOIN data.Dog AS d ON l.DogID = d.ID
LEFT OUTER JOIN data.Owner AS o ON d.OwnerID = o.ID
LEFT OUTER JOIN data.Address AS a ON o.AddressID = a.ID
LEFT OUTER JOIN lookup.Title AS lt ON o.TitleID = lt.ID
LEFT OUTER JOIN lookup.State AS ls ON a.StateID = ls.ID
LEFT OUTER JOIN lookup.TagStyle AS lts ON l.TagStyleID = lts.ID
LEFT OUTER JOIN lookup.Breed AS lb ON d.BreedID = lb.ID
LEFT OUTER JOIN lookup.HairLength AS lhl ON d.HairLengthID = lhl.ID
LEFT OUTER JOIN lookup.Color AS lpc ON d.PrimaryColorID = lpc.ID
LEFT OUTER JOIN lookup.Color AS lsc ON d.SecondaryColorID = lsc.ID
LEFT OUTER JOIN lookup.Sex AS lx ON d.SexID = lx.ID
LEFT OUTER JOIN (
SELECT
p.Number AS PhoneNumber,
lpt.Name AS PhoneType,
op.OwnerID AS OwnerID
FROM
data.OwnerPhone AS op
LEFT OUTER JOIN data.Phone AS p ON op.PhoneID = p.ID
LEFT OUTER JOIN lookup.PhoneType AS lpt ON p.PhoneTypeID = lpt.ID
WHERE
p.IsPrimary = 1
) AS jpi ON o.ID = jpi.OwnerID
LEFT OUTER JOIN (
SELECT
e.Address AS EmailAddress,
let.Name AS EmailType,
oe.OwnerID AS OwnerID
FROM
data.OwnerEmail AS oe
LEFT OUTER JOIN data.Email AS e ON oe.EmailID = e.ID
LEFT OUTER JOIN lookup.EmailType AS let ON e.EmailTypeID = let.ID
WHERE
e.IsPrimary = 1
) AS jei ON o.ID = jei.OwnerID
WHERE
l.ForYear = @ForYear
AND l.TagNumber >= @StartNumber
AND l.TagNumber <= @EndNumber
AND l.Issued >= @StartDate
AND l.Issued <= @EndDate
ORDER BY
l.TagNumber
结尾
在这里结束是我调用 SP 的方法:
public DataTable FetchLicenseReceiptData(int ForYear, int StartNumber, int EndNumber, DateTime StartDate, DateTime EndDate) {
DataTable Result = new DataTable();
try {
using (SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["DogLicensingContext"].ConnectionString)) {
SqlCommand cmd = new SqlCommand("FetchLicenseReceiptData", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@ForYear", ForYear));
cmd.Parameters.Add(new SqlParameter("@StartNumber", StartNumber));
cmd.Parameters.Add(new SqlParameter("@EndNumber", EndNumber));
cmd.Parameters.Add(new SqlParameter("@StartDate", StartDate));
cmd.Parameters.Add(new SqlParameter("@EndDate", EndDate));
con.Open();
SqlDataAdapter ds = new SqlDataAdapter(cmd);
ds.Fill(Result);
Result.TableName = "LicenseReceiptDataAutoPrint";
} // using the connection
} catch (Exception e) {
} // try-catch
return Result;
} // FetchLicenseReceiptData - Method
所以在 SSMS 中,当我运行以下命令时:
FetchLicenseReceiptData 2013, 270, 271, '2012-01-01', '2012-12-31'
我得到2条记录。通过 .Fill 运行时,我只得到一个(270)
当我在 SSMS 中运行以下命令时:
FetchLicenseReceiptData 2013, 271, 300, '2012-01-01', '2012-12-31'
我得到了所有 30 行。但是通过 .Fill 它不会返回任何内容。
最后,如果我运行以下命令:
FetchLicenseReceiptData 2013, 301, 310, '2012-01-01', '2012-12-31'
我在 SSMS 和 .Fill 中都得到了 10 个。
作为返回数据的示例,这里是 SSMS 中返回的 270 和 271 数据。我用波浪号 (~) 字符替换了选项卡
01CA2013T000270~270~2012-12-12 16:10:58.273~2013~20.00~NULL~标准~2014-01-31 00:00:00.000~Theo~2008-02-13 00:00:00.000~0~0 ~沙皮~短~杏~白~男~未知~cccccccc~~kkkkkkk~4444 RICHLAND AVE.~~xxxxxx~~OH~44444~5555555~家~NULL~NULL
01CA2013T000271~271~2012-12-13 08:44:58.670~2013~20.00~NULL~标准~2014-01-31 00:00:00.000~SAMSON~1999-12-12 00:00:00.000~1~0 ~拉布拉多犬~中~黑色~未知~男~女士~xxxxx~~xxxxxxxxxx~4444 GIEL AVE~~xxxxxx~~OH~44444~5555555~家~xxxxxx~个人
这个很奇怪。希望你们中的一位大师可以帮助我。
解决方案: 感谢@EJBrennan 的 SQL Profiler 建议。我以前从未使用过它,但它为我指明了正确的方向。这是实际上被发送到 SQL:
exec FetchLicenseReceiptData @ForYear=2013,@StartNumber=270,@EndNumber=271,@StartDate='2012-01-01 00:00:00',@EndDate='2012-12-13 00:00:00'
当我运行它时,它给了我 1 行而不是 2 行。基本上除了 00:00:00 之外的值是相同的。我最终将以下内容添加到我的存储过程的顶部以强制事情正确:
SET @StartDate = DATEADD(DAY, DATEDIFF(DAY, 0, @StartDate), 0) -- Beginning of given Date
SET @EndDate = DATEADD(DAY, DATEDIFF(DAY, 0, @EndDate), 1) -- End of given Date
这将获取传入的任何 @StartDate 并将其强制为当天的 0:0:0。然后它将@EndDate 设置为NEXT 日期,同时设置时间为0:0:0。
同样在 WHERE 子句中 SP 的底部,我将 <= @EndDate 更改为 < EndDate 从现在开始,@EndDate 是传入日期之后的一天。
再次感谢@EJBrennan