sql - Big Mysql Query (Join counts in the result and modify a string) -


I'm new to mysql so please forgive my knowledge level here, and hesitate to direct me in a better direction. Do not

My Table:

Server:

/ p>

  | Server id (int) | Article ID (Int.) | Location ID (int) | | 1 | 46 | 55 | | 2 | 11 | 81 | 3 | 81 46 | | 4 | 55 | 11 | | 5 | 81 99 | | 5 | 11 | 52 |   

Article:

  | Paragraph (int) | Name (varchar) | Type | | 46 | Domain | 0 | | 81 Root-server | 1 | | 55 | Making | 2 | | 11 | Root-server2 1 |   

Location:

  | Location id (int) | Location (varchar) | | 46 | 1-5-15-2. | 81 1-5-14-2. | 55 | 2-25-1- 9. | 11 | 21-2-5-8. | 99 | 17-2-5-8. | 52 | 1-8-5-8 ||   

Result:

  | Place (integer) | Name (varchar) | Count | | 1 | Root-server | 1 | | 1 | Root-server2 2 | | 17 | Root-server | 1 |   

The first number of space in the location space table is the block (1-5-15-2 -> 1, 1-8-5-8 -> 1, 21-2-5-8 -> 21, 17-2-5-8 -> 17). Counting is the same number of all servers with the same name and first place block.

Do anyone think that this result is to be obtained in only one query?

Thanks for any of the answers!

check this

  SELECT SUBSTRING_INDEX (location, '-' , 1) Enter the form of the lid as a place, such as Article.Name, Count (*) as the location on the Server.locationID connect to the server from the location. Location.locationID Article.ArticleID = Article by Article: Article.ArticleID;   



Comments

Popular posts from this blog

php - PDO bindParam() fatal error -

logging - How can I log both the Request.InputStream and Response.OutputStream traffic in my ASP.NET MVC3 Application for specific Actions? -

java - Why my included JSP file won't get processed correctly? -