Try this:
index=database_dump sourcetype="retinacs-database-view-asset" AssetName="*"
| fields AssetName, index, OSName, DomainName, IPAddress, LastUpdateDate
| eval AssetHostName=upper(AssetName) | dedup AssetHostName
| search NOT [search sourcetype="symantec-db-clients"
| eval AssetHostName=upper(COMPUTER_NAME) | dedup AssetHostName
| fields AssetHostName, index ]
| regex AssetHostName!="[0-9].*"
| search NOT AssetHostName=*CLUSTER*
NOT OSName=*Linux*
NOT OSName=*Blue*
NOT OSName=*Cent*
NOT OSName=*ESX*
NOT OSName=*iLO*
NOT OSName=*Integrated*
NOT OSName=FreeBSD*
NOT OSName=*LaserJet*
NOT OSName=*MAC*
DomainName=DMC
|stats count, values(IPAddress) as IPAddress, values(DomainName) as Domain, values(OSName) as OperatingSystem, values(LastUpdateDate) as LastUpdateDate, values(index) as Source by AssetName
| search count=1 Source=database_dump
| fields - count Source
... View more