sql server - SQL query takes much time to execute -

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I have a table candidates 43,437 rows with data, which are created by many employees

I want to get a report in which I want to get the personalized candidate of each employee in a period of 7 days .. I have performed the following queries for this. Select 

  E, E.Employinaame, (Candidate Select from C to count (CID) where CRITID = E. ID and C. Sorted between convert (date time, 19/07 / 2014 ', 103) and Convert (date time, from '26 employees   
 to  E.ID  employee's ID  employee   Table <..   / P> 
 but it takes about 2 minutes to execute the above query .. I do not index indexing in the  candidate  Did.  
 How to implement this query a few seconds ..?   
 
 
 Based on your description of the problem , The query should look like this:  
  Select Maker_ID, count (CID) Candidate convert from C here (Datetime, 1 9/07/2014 ', 103) and Convert (Datetime, '26 Creator / ID   
 (It believes that  candidate.Creator_id  and  Employees.id  Between are a foreign key relationship.)  
 for this query The best index is a cover index in which there are three columns outlined in the query:  
  create idx_candidate_createddate_creator_id_id index on candidate (created_date, manufacturer_id, id);

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