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DirectQuery

Pick DirectQuery only when Import cannot meet the freshness SLA

DirectQuery moves risk to daytime SQL. Use it when leaders truly need minute-level freshness — and can fund the warehouse accordingly.

NDA-readyFixed-scope first releaseBusiness + IT handover
SQL Server to Power BI performance dashboard with query latency and model refresh
  • Operating since 2012
  • Microsoft Power BI specialists
  • NDA-ready data handling
  • Fixed-scope first releases
  • Independent — not affiliated with Microsoft
November 22, 20251 min readBy Power BI Analytics Team

Import caches in VertiPaq and refreshes on a schedule. DirectQuery sends DAX-generated SQL at interaction time. Misalignment happens when sales wants “live” while the warehouse still batches every 4 hours — DirectQuery then only delivers live disappointment.

Agree numbers in the kickoff

  • Freshness SLA in minutes (e.g. ≤ 15 vs nightly is enough).
  • p95 visual response target (e.g. < 5s). If SQL cannot hit it with filters, Import + more frequent refresh wins.
  • Who pays when a lock or blocking session on SQL makes the dashboard spin — BI or DBA on-call?

Technical tripwires

Dual storage mode tables casually introduced “to speed the date table” create unexpected refresh + query coupling. Bidirectional relationships in DirectQuery multiply SQL joins. If View Native Query disappears after a custom column in Power Query, you may be evaluating mashup before SQL — Desktop feels fine on a sample; the gateway times out with “A connection could not be made…” under concurrent users.

Default stance for management packs: Import with a known refresh window. Keep DirectQuery for operational screens where the source is indexed for the exact predicates the reports send.

Related services

DirectQueryhealthcare-analyticsPower BI

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DirectQuery

Illustrative KPI view

Sample model

Revenue

$2.2M

-2.1% vs LY

Gross margin

14.4%

+0.3 pts

Decision cycle time

9.7 days

+0.1 days

Open exceptions

25

+5 vs last week

Trailing 12 periodsvs plan
On track
65%
Watch
28%
Critical
10%

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