How to Import SQL Server Errorlogs into TABLE


CREATE PROC sp_import_errorlog
(
 @log_name sysname,
 @log_number int = 0,
 @overwrite bit = 0
)
AS
/*************************************************************************************************
Purpose: import SQL Server error log into a table and query 
Tested on:  SQL Server 2000

Limitation:  With error messages spanning more than one line only the first line is included in the table

Example 1:  To import the current error log to table myerrorlog
  EXEC sp_import_errorlog ‘myerrorlog’

Example 2:  To import the current error log to table myerrorlog, and overwrite the table
  ‘myerrorlog’ if it already exists
  EXEC sp_import_errorlog ‘myerrorlog’, @overwrite = 1

Example 3:  To import the previous error log to table myerrorlog
  EXEC sp_import_errorlog ‘myerrorlog’, 1

Example 4:  To import the second previous error log to table myerrorlog
  EXEC sp_import_errorlog ‘myerrorlog’, 2

*************************************************************************************************/

BEGIN
 SET NOCOUNT ON
 
 DECLARE @sql varchar(500) –Holds to SQL needed to create columns from error log

 IF (SELECT OBJECT_ID(@log_name,’U’)) IS NOT NULL
  BEGIN
   IF @overwrite = 0
    BEGIN
     RAISERROR(‘Table already exists. Specify another name or pass 1 to @overwrite parameter’,18,1)
     RETURN -1
    END
   ELSE
    BEGIN
     EXEC(‘DROP TABLE ‘ + @log_name)
    END
  END

 
 –Temp table to hold the output of sp_readerrorlog
 CREATE TABLE #errlog
 (
  err varchar(1000),
  controw tinyint
 )

 –Populating the temp table using sp_readerrorlog
 INSERT #errlog
 EXEC sp_readerrorlog @log_number

 –This will remove the header from the errolog
 SET ROWCOUNT 4
 DELETE #errlog
 SET ROWCOUNT 0

 
 SET @sql =  ‘SELECT
    CONVERT(DATETIME,LEFT(err,23)) [Date],
    SUBSTRING(err,24,10) [spid],
    RIGHT(err,LEN(err) – 33) [Message],
    controw
   INTO ‘ + QUOTENAME(@log_name) +
   ‘ FROM #errlog ‘ +
   ‘WHERE controw = 0’
 
 –Creates the table with the columns Date, spid, message and controw
 EXEC (@sql) 
 
 –Dropping the temporary table
 DROP TABLE #errlog
 
 SET NOCOUNT OFF
PRINT ‘Error log successfully imported to table: ‘ + @log_name
END

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