Create built-in tables in your own database to handle exceptions, Part 2
Posted by: Rickie Apr. 25, 2006
http://rickie.cnblogs.com
2. Create stored procedures
The following SQL script is adopted to create four stored procedures in the same database with the above tables respectively. These stored procedures are usp_Logging_InsertCategoryLog, usp_Logging_AddCategory, usp_Logging_ClearLogs and usp_Logging_WriteLog.
CREATE PROCEDURE usp_Logging_InsertCategoryLog
@CategoryID INT,
@LogID INT
AS
BEGIN
SET NOCOUNT ON;
DECLARE @CatLogID INT
SELECT @CatLogID FROM Logging_CategoryLog WHERE CategoryID=@CategoryID and LogID = @LogID
IF @CatLogID IS NULL
BEGIN
INSERT INTO Logging_CategoryLog (CategoryID, LogID) VALUES(@CategoryID, @LogID)
RETURN @@IDENTITY
END
ELSE RETURN @CatLogID
END
CREATE PROCEDURE [dbo].[usp_Logging_AddCategory]
-- Add the parameters for the function here
@CategoryName nvarchar(64),
@LogID int
AS
BEGIN
SET NOCOUNT ON;
DECLARE @CatID INT
SELECT @CatID = CategoryID FROM Logging_Category WHERE CategoryName = @CategoryName
IF @CatID IS NULL
BEGIN
INSERT INTO Logging_Category (CategoryName) VALUES(@CategoryName)
SELECT @CatID = @@IDENTITY
END
EXEC usp_Logging_InsertCategoryLog @CatID, @LogID
RETURN @CatID
END
CREATE PROCEDURE usp_Logging_ClearLogs
AS
BEGIN
SET NOCOUNT ON;
DELETE FROM Logging_CategoryLog
DELETE FROM Logging_Log
DELETE FROM Logging_Category
END
CREATE PROCEDURE [dbo].[usp_Logging_WriteLog]
(
@EventID int,
@Priority int,
@Severity nvarchar(32),
@Title nvarchar(256),
@Timestamp datetime,
@MachineName nvarchar(32),
@AppDomainName nvarchar(512),
@ProcessID nvarchar(256),
@ProcessName nvarchar(512),
@ThreadName nvarchar(512),
@Win32ThreadId nvarchar(128),
@Message nvarchar(1500),
@FormattedMessage ntext,
@LogId int OUTPUT
)
AS
INSERT INTO [Logging_Log] (
EventID,
Priority,
Severity,
Title,
[Timestamp],
MachineName,
AppDomainName,
ProcessID,
ProcessName,
ThreadName,
Win32ThreadId,
Message,
FormattedMessage
)
VALUES (
@EventID,
@Priority,
@Severity,
@Title,
@Timestamp,
@MachineName,
@AppDomainName,
@ProcessID,
@ProcessName,
@ThreadName,
@Win32ThreadId,
@Message,
@FormattedMessage)
SET @LogID = @@IDENTITY
RETURN @LogID
3. Change app.config/web.config configuration file to refer to new stored procedures.
The default values for logging application block should be updated because in the above step, the names of stored procedures have been updated too. Only two properties are required to change. One is AddCategoryStoredProcdure, another is WriteLogStoredProcedureName. Please reference to following image when changing these properties in your case.
