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Warehousing & Analytics
Engage in discussions on data warehousing, analytics, and BI solutions within the Databricks Community. Share insights, tips, and best practices for leveraging data for informed decision-making.
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Data + AI Summit 2024 - Data Warehousing, Analytics, and BI

Forum Posts

MadelynM
by Databricks Employee
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[Recap] Data + AI Summit 2024 - Warehousing & Analytics | Improve performance and increase insights

Here's your Data + AI Summit 2024 - Warehousing & Analytics recap as you use intelligent data warehousing to improve performance and increase your organization’s productivity with analytics, dashboards and insights.  Keynote: Data Warehouse presente...

Screenshot 2024-07-03 at 10.15.26 AM.png
Warehousing & Analytics
AI BI Dashboards
AI BI Genie
Databricks SQL
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colinsorensen
by New Contributor III
  • 2276 Views
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Unhandled error while executing ['DatabricksSQLCursorWrapper' object has no attribute 'fetchmany'

Getting this error in dbt when trying to run a query. Not happening in the actual SQL warehouse in Databricks. Is this a bug? Can only find source code when I search 'DatabricksSQLCursorWrapper' but no documentation or information otherwise.

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hehuan-yu-zen
by New Contributor II
  • 1581 Views
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customise the dates showing in the calendar selection in sql editor/dashboard

Does anybody know whether we could customise the dates showing in the calendar selection in sql editor/dashboard?My query has a time frame in a particular period, however when I use DateRange parameter in sql editor, it could allow users to choose th...

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Does anybody know whether we could customise the dates showing in the calendar selection in sql editor/dashboard?My query has a time frame in a particular period, however when I use DateRange parameter in sql editor, it could allow users to choose th...

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mortenhaga
by Contributor
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Resolved! Databricks SQL and Engineer Notebooks yields different outputs from same script

Hi allWe are having some alarming issues regarding a script that yields different output when running on SQL vs Notebook. The correct output should be 8625 rows which it is in the notebook, but the output in Databricks SQL is 156 rows. The script use...

serverless cluster.JPG notebook compute info.JPG corrupt script wrong output notebook with serverless cluster.JPG corrupt script wrong output sql.JPG
Warehousing & Analytics
Databricks SQL
Notebook
Wrong output
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mortenhaga
Contributor
  • 3 kudos

UPDATE:I think we have identefied and solved the issue. It seems like using LAST with Databricks SQL requires to excplicitly be careful about setting the "ignoreNull" argument and also be careful about the correct datatype. I guess this is because of...

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uberweiss
by New Contributor II
  • 3868 Views
  • 1 replies
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Unable to access Databricks cluster through ODBC in R

We have previously been able to access our Databricks cluster in R using ODBC but it stopped working a couple of months ago and now i can't get it to connect.I've downloaded the latest drivers and added the right information in odbc/odbcinst files bu...

Warehousing & Analytics
cluster
Databricks
ODBC
R
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We have previously been able to access our Databricks cluster in R using ODBC but it stopped working a couple of months ago and now i can't get it to connect.I've downloaded the latest drivers and added the right information in odbc/odbcinst files bu...

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peterlandis
by New Contributor II
  • 2447 Views
  • 1 replies
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Calculate the total size in bytes for a column

I wanted to calculate the total size in bytes for a given column for a table.  I saw that you can use the bit_length function and did something like this giving you the total bits of the column but not sure if this is correct.SELECT sum(bit_length(to...

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-werners-
Esteemed Contributor III
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I looked at the docs of bit_length and it does not state if it is before or after compression.However since spark decompresses data on read, it is very likely it is the size before compression.The table size is read from metadata and is compressed.To...

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MonikaSamant
by New Contributor II
  • 2699 Views
  • 3 replies
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Need to connect Looker studio with Databricks tables

Hi Team, I am creating my data warehouse on AWS s3 and corresponding tables on databricks warehouse.I want to connect looker studio (which is different from looker) to these databricks tables and be able to create reports.Could you please help us on ...

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Latest Reply
807326
New Contributor II
  • 2 kudos

We are also interested in this functionality. But there are no databricks connectors for Looker Studio. But as Databricks SQL Statement Execution REST API is already available in public preview, it is now possible to Build a Community Connector for d...

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charlie_cai
by New Contributor II
  • 1467 Views
  • 1 replies
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What is the difference between :443/default and Database=default in JDBC connection string

When I use following java code to get namespace from AWD Databricks:  import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.Statement; import java.util.Properties; public class DatabricksJDBCExample { ...

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Tharun-Kumar
Databricks Employee
  • 3 kudos

@charlie_cai database is not a valid configuration parameter available in the jdbc string. You can use ConnCatalog and ConnSchema to provide this information.This is also documented here - https://docs.databricks.com/en/integrations/jdbc-odbc-bi.html...

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Meagan
by New Contributor III
  • 2073 Views
  • 1 replies
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Resolved! Delta Sharing lists tables but says "access to resource is forbidden" when reading table contents

I am using Power BI Desktop to connect to Unity Catalog using Delta Sharing. When I connect, I enter my endpoint, enter my bearer token, browse the catalog and can see my tables. But when I try to preview or load a table, I get the error "access to r...

Meagan_0-1690388250151.png
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Meagan
New Contributor III
  • 0 kudos

It turned out we had to allow my IP address on the storage account used by Unity Catalog. I guess i wasn't expecting to need that for Delta Sharing, but that indeed did fix the problem. 

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DennisD
by New Contributor
  • 741 Views
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Notebook stuck on Initializing RocksDB

Hi,While running a notebook during a nightrun on Azure Databricks, it got stuck on Initializing RocksDB. We are not using any streaming data nor have enabled RocksDB. Anyone has any clue how to disable RocksDB or prevent this in the future?Thanks! 

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dprutean
by New Contributor III
  • 949 Views
  • 1 replies
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JDBC DatabaseMetaData.getColumns().getComments() encoding issue

I am using the JDBC driver to load comments saved in Databricks, associated to tables and columns.Comments saved in Chinese are returned in the bad encoding. I useDatabaseMetaData.getColumns().getComments()

  • 949 Views
  • 1 replies
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saipujari_spark
Databricks Employee
  • 1 kudos

@dprutean Can you share an example with the expected results vs the actual results?

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