Heap tables (before SQL Server 2016)

GPTKB entity

Statements (19)
Predicate Object
gptkbp:instanceOf database table type
gptkbp:deletesAndUpdates can cause fragmentation
gptkbp:featureChangeAfter improvements in SQL Server 2016
gptkbp:hasClusteredIndex false
https://www.w3.org/2000/01/rdf-schema#label Heap tables (before SQL Server 2016)
gptkbp:nonClusteredIndex can be created
points to RID
gptkbp:notRecommendedFor frequent range queries
tables with frequent updates and deletes
gptkbp:performanceContext faster for small, staging, or temporary tables
slower for large tables without indexes
gptkbp:rowLocation row identifier (RID)
gptkbp:storage unordered pages
gptkbp:suitableFor ETL staging
temporary data
gptkbp:tableScan full scan required for data retrieval
gptkbp:usedIn gptkb:Microsoft_SQL_Server
gptkbp:bfsParent gptkb:Columnstore_Indexes
gptkbp:bfsLayer 8