Help optimizing an advanced Splunk DB Connect search

[griffinpair]

The query below takes approximately 20 minutes to run and I need help optimizing it. The point of the query is to gather the number of problematic data conditions from each client. The conditions are:
1. Where PROCESSEDFLAG='N' (from the VA table)
2. Where WORKFLOWSTATUS is null (from the CA table)
3. Where PROCESSEDFLAG='N' (from the VS table).

Our current setup has each client having their own database and clients split throughout servers. Given our setup, this is why I have formatted the search to have a different sub-search for each problematic condition for each client. What solutions are there to fix the current speed of the search or optimize the current query?

|dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID1\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-126" | stats count as ALPVCA 
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID2\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-126" | stats count as ARTVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID3\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-126" | stats count as CEGVCA] 
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID4\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-126" | stats count as CFUSVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID5\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-116" | stats count as IRMVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID6\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-116" | stats count as MARVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID7\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-116" | stats count as USBIVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID8\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-116" | stats count as WHIVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID9\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-124" | stats count as WOSVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID10\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-124" | stats count as POWVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID11\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-124" | stats count as NABVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID12\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-125" | stats count as NDQVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID13\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-127" | stats count as WEDVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID14\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-127" | stats count as HLMVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID15\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-127" | stats count as ICBCVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID16\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-128" | stats count as CFUKVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID17\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-128" | stats count as MEDVCA]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID18\".\"dbo\".\"VA\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-128" | stats count as SPIVCA]

| appendcols [dbxquery query="SELECT ClientID FROM \"clientID1\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null connection="connection-126" | stats count as ALPWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID2\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null connection="connection-126" | stats count as ARTWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID3\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null connection="connection-126" | stats count as CEGWS] 
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID4\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null connection="connection-126" | stats count as CFUSWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID5\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null connection="connection-116" | stats count as IRMWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID6\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null  connection="connection-116" | stats count as MARWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID7\".\"dbo\".\"CA\"WHERE WORKFLOWSTATUS = Null connection="connection-116" | stats count as USBIWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID8\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null  connection="connection-116" | stats count as WHIWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID9\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null  connection="connection-124" | stats count as WOSWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID10\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null  connection="connection-124" | stats count as POWWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID11\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null  connection="connection-124" | stats count as NABWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID12\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null  connection="connection-125" | stats count as NDQWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID13\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null  connection="connection-127" | stats count as WEDWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID14\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null connection="connection-127" | stats count as HLMWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID15\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null  connection="connection-127" | stats count as ICBCWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID16\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null connection="connection-128" | stats count as CFUKWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID17\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null connection="connection-128" | stats count as MEDWS]
| appendcols [dbxquery query="SELECT ClientID FROM \"clientID18\".\"dbo\".\"CA\" WHERE WORKFLOWSTATUS = Null connection="connection-128" | stats count as SPIWS]

| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID5\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-116" | stats count as IRMVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID6\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-116" | stats count as MARVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID7\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-116" | stats count as USBIVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID8\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-116" | stats count as WHIVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID9\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-124" | stats count as WOSVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID10\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-124" | stats count as POWVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID11\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-124" | stats count as NABVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID12\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-125" | stats count as NDQVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID13\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-127" | stats count as WEDVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID14\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-127" | stats count as HLMVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID15\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-127" | stats count as ICBCVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID16\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-128" | stats count as CFUKVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID17\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-128" | stats count as MEDVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID18\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-128" | stats count as SPIVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID1\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-126" | stats count as ALPVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID2\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-126" | stats count as ARTVSEC] 
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID3\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) "  connection="connection-126" | stats count as CEGVSEC]
| appendcols [dbxquery query="SELECT PROCESSEDFLAG FROM \"clientID4\".\"dbo\".\"VS\" WHERE PROCESSEDFLAG = 'N' and ADDEDDT >DATEADD(hour, -24, GETDATE()) " connection="connection-126" | stats count as CFUSVSEC]  

| eval Totals= ARTVCA+CEGVCA+CFUSVCA+IRMVCA+MARVCA+USBIVCA+WHIVCA+WOSVCA+POWVCA+NDQVCA+WEDVCA+HLMVCA+ICBCVCA+CFUKVCA+MEDVCA+SPIVCA+ARTVSEC+CEGVSEC+CFUSVSEC+IRMVSEC+MARVSEC+USBIVSEC+WHIVSEC+WOSVSEC
+POWVSEC+NDQVSEC+WEDVSEC+HLMVSEC+ICBCVSEC+CFUKVSEC+MEDVSEC+SPIVSEC+ARTWS+CEGWS+CFUSWS+IRMWS+MARWS+USBIWS+WHIWS+WOSWS+POWWS+NDQWS+WEDWS+HLMWS+ICBCWS+CFUKWS+MEDWS+SPIWS
| table Totals

[david_muegge]

Have you tried to use SQL unions and construct a single SQL query? The data would then be assembled at the DB server. This would reduce the network round trips drastically. Just a thought.