内部联接和查询优化

Question

以下查询会产生所需的结果。

  SELECT client.client_code,client.client_name,dealing_record.transaction_number,
transaction_type.transaction,payment_status.status,payment_record.Amount_settled,
payment_record.payment_date
  FROM client inner Join payment_record on payment_record.client_id= client.client_id
        inner join dealing_record on 
           dealing_record.dealing_record_id=payment_record.dealing_id
        inner join payment_status on 
            payment_record.payment_status_id=payment_status.payment_status_id
        inner Join transaction_type on 
            dealing_record.transaction_type_id=transaction_type.transaction_type_id
     WHERE status='pending settlement' AND payment_date  BETWEEN '07-Nov-2010' AND 
                  '17-Nov-2013';

还有另一种方法可以用较小的内部连接来完成吗？

Answer 1

优化的最佳方法是查看执行计划。

执行计划将告知查询何时使用索引，并且通过该信息，您可以采取措施更改索引结构。

查看此问题中的信息

Optimizing Execution Plans for Parameterized T-SQL Queries Containing Window Functions