Question

I have 3 tables within my data base:

• User Table
• Documents Table
• User-ReadDoc Table (Many-to-Many)

At the moment when I select the data from the two tables it will only display what document the user has read. I want to output the full list of documents but output if the user has or hasnt read the document.

In the “User-ReadDoc” table there is a column that specifies this.

Sudo Code Example

SELECT * FROM Documents, User-ReadDoc

It will just display rows saying who has read the document I just want a list so if that data is not there just truent it and place a “null” or a “0”

BTW I’m using SQL Server 2005…

Thanks.

Answer 1

LEFT JOIN is the way to go

SELECT * FROM Documents d LEFT JOIN User-ReadDoc ud ON d.DocID = ud.DocID 

plus you should select needed fields only.