SQL Combining two joins -

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i understanding of sql average, wondering if there way more efficiently write statement?

the primary key of table company uniqentity , has company name nameof in row.

in table line, primary key uniqline , have columns entitycompanybilling , entitycompanyissuing (both foreign keys uniqentity).

this code below works fine, trying make more efficient. possible?

select     l.uniqline, b.nameof billingcompany,     l.uniqentitycompanybilling, i.nameof issuingcompany,     l.uniqentitycompanyissuing     line l  inner join     company b on b.uniqentity = l.uniqentitycompanybilling inner join     company on i.uniqentity = l.uniqentitycompanyissuing

changing structure of query may not make more efficient (it seems simple can be). changing structure of data might:

  • add indexes (if not already) on uniqentitycompanybilling , uniqentitycompanyissuing
  • add index on company.uniqentity didn't catch column pk
  • if index on company.uniqentity isn't clustered, include nameof field in index on company.uniqentity query doesn't have go physical table.

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