[Solved] SQL Query Simplification - How to do in SQL Server what is currently done in the code?

How to optimize this SQL query?

In case you have your own slow SQL query, you can optimize it automatically here.

For the query above, the following recommendations will be helpful as part of the SQL tuning process.
You'll find 3 sections below:

  1. Description of the steps you can take to speed up the query.
  2. The optimal indexes for this query, which you can copy and create in your database.
  3. An automatically re-written query you can copy and execute in your database.
The optimization process and recommendations:
  1. Create Optimal Indexes (modified query below): The recommended indexes are an integral part of this optimization effort and should be created before testing the execution duration of the optimized query.
Optimal indexes for this query:
CREATE INDEX table1_idx_orderid_isactiv_serialn_isprint ON Table1 (OrderID,IsActive,SerialNumberDate,IsPrinted);
The optimized query:
SELECT
        Table1.UnitSerialNumber 
    FROM
        Table1 
    WHERE
        Table1.OrderID = 1234 
        AND Table1.IsActive = 1 
    ORDER BY
        Table1.SerialNumberDate,
        Table1.IsPrinted

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* original question posted on StackOverflow here.