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%META:TOPICPARENT{name="VirtTipsAndTricksGuide"}% ---+Determining Data Usage ---++What? How to determine the data usage across a Virtuoso instance. ---++Why? There are times when a variety of DBMS activities (e.g., automated content crawling) can lead to increase in database size, without the instance operator being fully aware of such activities and their consequences. ---++How? Run: <verbatim> SELECT TOP 20 * FROM sys_index_space_stats ORDER BY iss_pages DESC; Query result: ISS_KEY_TABLE ISS_KEY_NAME ISS_KEY_ID ISS_NROWS ISS_ROW_BYTES ISS_BLOB_PAGES ISS_ROW_PAGES ISS_PAGES WS.WS.SYS_DAV_RES WS.WS.SYS_DAV_RE.. 492 630627 437635794 501049 57521 558570 DB.DBA.RDF_QUAD DB.DBA.RDF_QUAD 487 25134153 321502272 0 49779 49779 DB.DBA.RDF_QUAD RDF_QUAD_POGS 489 14749814 307163163 0 47191 47191 WS.WS.SYS_DAV_RES.... DB.DBA.RDF_OBJ 501 1139934 160445830 10748 21478 32226 WS.WS.SYS_DAV_RES WS.WS.SYS_DAV_RE.. 729 432 307124 28840 97 28937 DB.DBA.RDF_IRI DB.DBA.RDF_IRI 485 4378779 138542078 0 22479 22479 DB.DBA.RDF_IRI DB_DBA_RDF_IRI_UN.. 486 4259557 139496730 0 20187 20187 ...... </verbatim> ---++Related * [[VirtTipsAndTricksGuide][Virtuoso Tips and Tricks Collection]]
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