Data Sources and Performance

For questions about connecting to data sources, complicated joins, extracting data, and data base performance. Forum contains 999 posts in 241 topics.

Connection to Oracle Database

1 hour 13 min ago
by GregSa

Stored Function from SQL Server

6 hours 12 min ago
by L. Murphy (not verified)

Combine two Excel files or how to use a look-up table

3 days 14 hours ago
by Matt Morgenroth

Oracle Database Error 904

3 days 14 hours ago
by Matt Morgenroth

Eliminating NULL from Excel Datasource

3 days 21 hours ago
by Alex Blakemore

Using Excel crosstab as a data source

5 days 18 hours ago
by skurian

How does tableau generates a query ?

1 week 22 hours ago
by L. Murphy (not verified)

Different flavors of .xlsx files?

1 week 1 day ago
by Andrew Beers

Filters very slow querying Access

1 week 4 days ago
by JamesC

5.2, ODBC and SAS

1 week 5 days ago
by mcristia

Filder data by different measures

2 weeks 23 hours ago
by James Baker

Losing values when using a UNION query

2 weeks 1 day ago
by mtmixon

Using tableau data...

2 weeks 2 days ago
by joemako

Work of XLS or Create and Extract

2 weeks 5 days ago
by James Baker

Analysis Services database error 0x80004005: The following system error occurred: A specified logon session does not exist.

3 weeks 1 hour ago
by Ben Sullins (not verified)

Extract is not an extract

3 weeks 3 days ago
by James Baker

Tableau changes header text during the import process

3 weeks 5 days ago
by James Baker

is Connection between DB and Excel possible?

4 weeks 21 hours ago
by Matt S (not verified)

Packaged Workbook and SQL Server data source

5 weeks 3 days ago
by James Baker

Creating a macro

5 weeks 4 days ago
by Richard Leeke

Large numeric values not recognised for text data source

5 weeks 5 days ago
by Julia Ryan

Mulitple Series-One Axis

6 weeks 5 hours ago
by Travis

Add dimension without adding sql table

6 weeks 3 days ago
by Richard Leeke

How to update charts in powerpoint?

6 weeks 3 days ago
by Caroline Bowker

DB2 iSeries Connection

6 weeks 5 days ago
by Robert Morton

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