@prefix schema: <https://schema.org/> .
@prefix af: <https://anchorfact.org/ns#> .

<https://anchorfact.org/kb/computer-science/sql>
  a schema:TechArticle ;
  schema:headline "SQL (Structured Query Language)" ;
  schema:url <https://anchorfact.org/computer-science/sql/> ;
  af:status "public" ;
  af:confidence "medium" ;
  af:confidenceScore "0.89" ;
  af:confidenceBasis "verified_sources" ;
  af:generationMethod "ai_structured" .

<https://anchorfact.org/kb/computer-science/sql>
  schema:citation <https://www.iso.org/standard/76583.html> ;
  af:sourceTier "S" .

<https://anchorfact.org/kb/computer-science/sql>
  schema:citation <https://www.postgresql.org/docs/17/> ;
  af:sourceTier "B" .

<https://anchorfact.org/kb/computer-science/sql>
  schema:citation <https://doi.org/10.1145/362384.362685> ;
  af:sourceTier "S" .