UIM: Attachment Table Full-Scan on LogicalDeviceAccount Creation (Doc ID 2412373.1)

Last updated on NOVEMBER 05, 2022

Applies to:

Goal

When the customer creates a logical device then UIM core framework is generating certain SQL statements. The query below is part of those statements.

However when this SQL Select is executed - it is performing the FULL table scan for Attachment Table.

SQL:
SELECT t2.ENTITYID, t2.ENTITYCLASS, t2.ACTIVITY, t2.ADMINSTATE, t2.ATTACHMENTTYPE, t2.CREATEDDATE, t2.CREATEDUSER, t2.DESCRIPTION, t2.DIRECTION, t2.ENDDATE, t2.ENTITYVERSION, t2.FROMENTITYCLASS, t2.FROMENTITYID, t2.FROMENTITYNAME, t2.FROMENTITYREF, t2.FROMENTITYROLEKEY, t2.FROMENTITYSPECNAME, t2.ID, t2.LASTMODIFIEDDATE, t2.LASTMODIFIEDUSER, t2.NAME, t2.OBJECTSTATE, t2.RELTYPE, t2.STARTDATE, t2.TOENTITYCLASS, t2.TOENTITYID, t2.TOENTITYNAME, t2.TOENTITYREF, t2.TOENTITYROLEKEY, t2.TOENTITYSPECNAME, t2.CUSTOMINVOLVEMENTSPECIFICATION FROM Specification t0, Attachment t2, CustomInvolvementSpecification t1 WHERE (((((t0.NAME = ?) AND (((t2.FROMENTITYCLASS = ?) AND (t2.FROMENTITYREF = ?)) OR ((t2.TOENTITYCLASS = ?) AND (t2.TOENTITYREF = ?)))) AND (((t2.OBJECTSTATE = ?) OR (t2.OBJECTSTATE = ?)) OR (t2.OBJECTSTATE = ?))) AND (t2.ENTITYCLASS = ?)) AND ((t0.ENTITYID = t2.CUSTOMINVOLVEMENTSPECIFICATION) AND ((t1.ENTITYID = t0.ENTITYID) AND (t0.ENTITYCLASS = ?)))) ORDER BY t2.ATTACHMENTTYPE ASC, t2.FROMENTITYCLASS ASC, t2.TOENTITYCLASS ASC


What can be recommended to improve the performance?
 

Solution

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