Dapperのデータを挿入するストアドプロシージャを使用して実行し、プライマリキー戻り
パラメータは、以下の4種類のDapperのSystem.Data.ParameterDirectionあります
public enum ParameterDirection
{
Input = 1,
Output = 2,
InputOutput = 3,
ReturnValue = 6
}
方法1 ParameterDirection.ReturnValue
キー:
返す@@ IDENTITY
p.Add( "@のID"、のdbType:DbType.Int32、方向:ParameterDirection.ReturnValue)。
VaRのID = p.Get( "@tID")。
MyTabel:
CREATE TABLE [dbo].[WorkLog](
[LogID] [bigint] IDENTITY(1,1) NOT NULL,
[TypeID] [int] NOT NULL,
[InsertDate] [datetime2](7) NOT NULL,
[Description] [nvarchar](max) NULL,
[UserName] [nvarchar](250) NULL,
[StatusId] [int] NULL
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
ストア手順:
CREATE proc [dbo].[InsertLogAndReturnID]
@TypeID INT ,
@Description nvarchar(max),
@UserName nvarchar(250)
AS
Begin
declare @TestID INT
INSERT INTO [dbo].[WorkLog]
( [TypeID]
,[InsertDate]
,[Description]
,[UserName])
VALUES
(
@TypeID
, GETDATE()
, @Description
,@UserName )
return @@IDENTITY
END
GO
C#コード:
var spName = "[dbo].[InsertLogAndReturnID]";
using (SqlConnection objConnection = new SqlConnection(Util.ConnectionString))
{
objConnection.Open();
DynamicParameters p = new DynamicParameters();
p.Add("@ID", dbType: DbType.Int32, direction: ParameterDirection.ReturnValue);
p.Add("@TypeID", 1);
p.Add("@Description", "TEST1");
p.Add("@UserName", "stone");
var row = SqlMapper.Execute(objConnection, spName, p, commandType: CommandType.StoredProcedure);
var id = p.Get<Int32>("@ID");
objConnection.Close();
}
方法1 ParameterDirection.Output
ストアドプロシージャ
CREATE proc [dbo].[InsertLogAndReturnID]
@TypeID INT ,
@Description nvarchar(max),
@UserName nvarchar(250),
@ID INT OUTPUT
AS
Begin
declare @TestID INT
INSERT INTO [dbo].[WorkLog]
( [TypeID]
,[InsertDate]
,[Description]
,[UserName])
VALUES
(
@TypeID
, GETDATE()
, @Description
,@UserName )
SELECT @ID = @@IDENTITY
END
GO
C#コード
var spName = "[dbo].[InsertLogAndReturnID]";
using (SqlConnection objConnection = new SqlConnection(Util.ConnectionString))
{
objConnection.Open();
DynamicParameters p = new DynamicParameters();
p.Add("@TestID", dbType: DbType.Int32, direction: ParameterDirection.Output);
p.Add("@TypeID", 1);
p.Add("@Description", "TEST1");
p.Add("@UserName", "stone");
var row = SqlMapper.Execute(objConnection, spName, p, commandType: CommandType.StoredProcedure);
var id = p.Get<Int32>("@TestID");
objConnection.Close();
}