How do I construct this table relationship in SQL Server? -


sorry, if rather basic question i'm sql server noob in need of help.

i have 2 types of loan providers, lender , pingtree.

both lender , pingtree can have relationship matchservice, need able store id.

at moment i'm struggling work out how can create relationship between them. demonstrate, i've created simple visual of want in real world (ringed in red) , think possible solution in sql server. in essence lender , pingtree have providerid , id stored in match table

enter image description here

all advice appreciated.

if designing table use provider match table, , store common attributes in provider table. non-common attributes, create them name/value pair table can link provider id.

edit: added sample of data structure.

matchservice (key matchid + providerid)

|matchid       |providerid| --------------------------- | 1            | 1        | | 2            | 1        | | 3            | 2        | | 4            | 1        |

provider (key providerid)

|providerid    |providertype |providername |startdatetime | enddatetime  | -------------------------------------------------------------------------- |1             |lender       |stark ind.   |1/1/2013 00:00|1/1/2014 00:00| |2             |pingtree     |moneybags    |1/1/2013 00:00|1/1/2014 00:00|

name/value pair table (for unique, key providerid + name)

| providerid | name                    | value        | ------------------------------------------------------- | 1          | pointofcontact          | tony stark   | | 1          | contact phone number    | 101-202-3456 | | 2          | customer service number | 402-123-4567 |

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