Damir Sprecic

  • Interests: Motorsport, Swimming, Photography

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6 Can’t-Miss Basic SQL Courses to Learn in 2024: Your Fast Track to Data Mastery

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Ready to dive into the world of SQL? Whether you're dreaming of a lucrative...

Data-driven vs. Data-informed: Let’s Acknowledge the Truth

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This comic was retweeted into my timeline on Twitter (I refuse to call it...

Writing Parquet Files – #SQLNewBlogger

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Recently I’ve been looking at archiving some data at SQL Saturday, possibly querying it,...

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Forums

Can you connect Power Apps to SQL Server if you work in the government?

By JJ B

My agency has been using the combo of on-premises SQL Server for the back...

Unable to connect to SQL 2019 using Pyodbc

By yyang5823

Development Environment I am learning how to use pyodbc and accessing database in SQL...

Multiple deadlocks occurring with contentious code

By zoggling

We are seeing multiple frequent deadlocks occurring with the following extract of code, which...

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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