KNOWLEDGE BASE

Error "Tableau Data Engine Error: 40401: Scan::Next: Mismatched row counts" Connecting to a Published Extract


Published: 23 May 2016
Last Modified Date: 27 Jun 2017

Issue

When connecting to a published extract in Tableau Desktop, the following error might occur:

Tableau Data Engine Error: 40401: Scan::Next: Mismatched row counts: Table has 936223 rows: Column: [ {column name} ] has 925021 rows
prepare.xml
class TdeDataSourceException

Environment

  • Tableau Desktop 9.3
  • Oracle

Resolution

Create a local copy of published data source and republish the data source.
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