Question

How can I fetch data from four tables?

I have four tables:

• Article_Table (ArticleName, ArticleNumber)
• IndexDetails_Table (IndexSubMasterId, ArticleNumber)
• IndexSubMaster_Table (IndexSubMasterId, IndexMasterId)
• IndexMaster_Table (IndexMasterId, Keyword)

I need final output:

ArticleName  from Article table. 

I will provide you a Keyword as an input parameter.

The process which I need would be:

1. IndexMasterId From IndexMaster_Table where Keyword = 'bl'

2. IndexSubMasterId From IndexSubMaster_Table
Where IndexSubMaster_Table.IndexMasterId = IndexMaster_Table.IndexMasterId

3. ArticleNumber From IndexDetails_Table
Where IndexDetails_Table.IndexSubMasterId = IndexSubMaster_Table.IndexSubMasterId

4. ArticleName From Article_Table
Where Article_Table.ArticleNumber = IndexDetails_Table.ArticleNumber

Answer 1

Try this I am sure there are more efficient ways but here is something for you

Declare @keyword varchar(20)
Set @keyword = 'bl'

Select article.ArticleName FROM IndexMaster_Table masterTable
JOIN IndexSubMaster_Table subMaster
on masterTable.IndexMasterId = subMaster.IndexMasterId
JOIN IndexDetails_Table details
on details.IndexSubMasterId = subMaster.IndexSubMasterId
JOIN Article_Table article
on article.ArticleNumber = details.ArticleNumber
Where masterTable.keyword = @keyword