[英]SQL Server 2008 datetime will not insert via c# but works within SQL Server Management Studio?
I am using an SQL Server stored procedure to put data into a database via C#. 我正在使用SQL Server存储过程通过C#将数据放入数据库。 When I run the stored procedure from within SQL Server Management Studio it works but when I try to insert the row with C# it fails and I cannot find out why.
当我从SQL Server Management Studio中运行存储过程时,它可以工作,但是当我尝试使用C#插入行时,它失败了,我无法找出原因。 I initially had trouble getting with the
DATETIME
type in the stored procedure but now that works when I use CAST. 最初,我在使用存储过程中的
DATETIME
类型时遇到了麻烦,但是现在当我使用CAST时可以使用。 I have also tried passing the DateTime
values in as strings from C# but this does not work either!? 我也尝试过将C#中的
DateTime
值作为字符串传递,但这也不起作用!
My SP is below: 我的SP如下:
ALTER PROCEDURE [dbo].[SaveFlightInfo]
(
@FlightInfoID int,
@AirportFrom varchar(5),
@AirportTo varchar(5),
@TimeDeparture datetime,
@TimeArrival datetime,
@Price float,
@DateAdded datetime,
@Carrier varchar(30),
@Url varchar(300)
)
AS
DECLARE @sql as varchar(1000)
--If the primary key is zero then insert new record
IF ( @FlightInfoID = 0) BEGIN
DECLARE @sql3 as varchar(1000)
SET @sql ='
INSERT INTO '+@AirportFrom+'
(AirportFrom,
AirportTo,
TimeDeparture,
TimeArrival,
Price,
DateAdded,
Carrier,
Url)
VALUES ('''+@AirportFrom+''',
'''+@AirportTo+''',
CAST('''+CAST(@TimeDeparture as varchar(50))+''' as DATETIME),
CAST('''+CAST(@TimeArrival as varchar(50))+''' as DATETIME),
CAST('''+CAST(@Price as varchar(10))+''' as FLOAT),
CAST('''+CAST(@DateAdded as varchar(50))+''' as DATETIME),
'''+@Carrier+''',
'''+@Url+''')
'
END
EXEC(@sql)
My C# code is below: 我的C#代码如下:
Database db = DatabaseFactory.CreateDatabase("DBConnectionString");
DbCommand dbCommand = db.GetStoredProcCommand("SaveFlightInfo");
db.AddInParameter(dbCommand, "FlightInfoID", DbType.Int32, flightInfoID);
db.AddInParameter(dbCommand, "AirportFrom", DbType.String, airportFrom);
db.AddInParameter(dbCommand, "AirportTo", DbType.String, airportTo);
db.AddInParameter(dbCommand, "TimeDeparture", DbType.DateTime, timeDeparture);
db.AddInParameter(dbCommand, "TimeArrival", DbType.DateTime, timeArrival);
db.AddInParameter(dbCommand, "Price", DbType.Int16, price);
db.AddInParameter(dbCommand, "DateAdded", DbType.DateTime, dateAdded);
db.AddInParameter(dbCommand, "Carrier", DbType.String, carrier);
db.AddInParameter(dbCommand, "Url", DbType.String, url);
IDataReader dr = db.ExecuteReader(dbCommand);
Also you can use sp_executesql system stored procedure with parameters 您还可以将sp_executesql系统存储过程与参数一起使用
DECLARE @sql as varchar(1000)
--If the primary key is zero then insert new record
IF (@FlightInfoID = 0)
BEGIN
DECLARE @sql3 as varchar(1000)
SET @sql = 'INSERT INTO ' + @AirportFrom +
'(AirportFrom, AirportTo, TimeDeparture, TimeArrival, Price, DateAdded, Carrier, Url)
VALUES @AirportFrom, @AirportTo, @TimeDeparture, @TimeArrival, @Price, @DateAdded, @Carrier, @Url)'
END
EXEC sp_executesql @sql, N'@AirportFrom varchar(5),
@AirportTo varchar(5),
@TimeDeparture datetime,
@TimeArrival datetime,
@Price float,
@DateAdded datetime,
@Carrier varchar(30),
@Url varchar(300)', @AirportFrom,
@AirportTo,
@TimeDeparture,
@TimeArrival,
@Price,
@DateAdded,
@Carrier,
@Url
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