SQL Server database query speed is slow, the following are common. 1. no index or index is used. This is the most common problem of slow query, which is the defect of programming. 2.I/O has a small throughput, forming a bottleneck effect 3. does not create a column that causes the query to be not optimized

Filename	Size	Update
SQL查询优化.doc	2522112	2018-05-04

• We are an exchange download platform that only provides communication channels. The downloaded content comes from the internet. Except for download issues, please Google on your own.
• The downloaded content is provided for members to upload. If it unintentionally infringes on your copyright, please contact us.
• Please use Winrar for decompression tools
• If download fail, Try it againg or Feedback to us.
• If downloaded content did not match the introduction, Feedback to us，Confirm and will be refund.
• Before downloading, you can inquire through the uploaded person information

Nothing．