Sioban Krzywicki


Blogs

Are ABORT_AFTER_WAIT's victims logged?

By

In SQL Server, using the KILL command to terminate a session results in an...

Part 2: The Modern Azure Data Warehouse – ADF and ADLS

By

In today’s data-driven world, having the right tools to manage and process large datasets...

A New Word: Flichtish

By

flichtish – adj. nervously aware how much of your self-image is based on untested...

Read the latest Blogs

Forums

Kubernetes is Cool, But ...

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Kubernetes is Cool, But ...

Multiple Query Trace Flags

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Multiple Query Trace Flags

How Big Data Supports Gen AI

By Prasenjit

Comments posted to this topic are about the item How Big Data Supports Gen...

Visit the forum

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