SQLBalls

Bradley Ball is a Sr. Azure FastTrack Customer Engineer for Microsoft, and former Data Platform MVP. During his IT career Bradley has spent 8 years working as a Defense contractor for clients such as the U.S. Army, The Executive Office of the President of the United States for the Obama Administration, and is the former Data Platform Practice Manager for Pragmatic Works Consulting, now 3Cloud. He has presented at SQL Saturdays, SSUG's, SQL Rally, DevConnections, SQLBits, SQL Live 360, and the PASS Summit. Bradley co-hosts the Tales From The Field YouTube show https://aka.ms/TftF/youtube , he can also be found blogging on https://www.SQLBalls.com

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Question of the Day

Multiple Query Trace Flags

I want to enable two trace flags, 4199 and 4137, for a single query. How should I do this:

-- A
SELECT
  a.AddressID
, a.AddressLine1
, a.AddressLine2
, a.City
, a.StateProvinceID
, a.PostalCode
, p.FirstName
, p.LastName
FROM
  Person.Address a
  INNER JOIN person.Person AS p
    ON p.rowguid = a.rowguid
WHERE
  City           = 'SEATTLE'
  AND PostalCode = 98104
OPTION (QUERYTRACEON 4199, 4137);

-- B
SELECT
  a.AddressID
, a.AddressLine1
, a.AddressLine2
, a.City
, a.StateProvinceID
, a.PostalCode
, p.FirstName
, p.LastName
FROM
  Person.Address a
  INNER JOIN person.Person AS p
    ON p.rowguid = a.rowguid
WHERE
  City           = 'SEATTLE'
  AND PostalCode = 98104
OPTION (QUERYTRACEON 4199, QUERYTRACEON 4137);

-- C
SELECT
  a.AddressID
, a.AddressLine1
, a.AddressLine2
, a.City
, a.StateProvinceID
, a.PostalCode
, p.FirstName
, p.LastName
FROM
  Person.Address a
  INNER JOIN person.Person AS p
    ON p.rowguid = a.rowguid
WHERE
  City           = 'SEATTLE'
  AND PostalCode = 98104
OPTION (QUERYTRACEON 4199), (QUERYTRACEON 4137);

See possible answers