I have a dataframe that looks like the following,+-------+--------+ |Charges| Status| +-------+--------+ | 495.6| Denied| |1806.28| Denied| | 261.3|Accepted| | 8076.5|Accepted| |1041.24| Denied| | 507.88| Denied| | 208.0|Accepted| | 152.49| ...
I know I have the option to delete rows from a Delta table when running a merge. But I'm confused about how that would actually affect the files that contain the deleted records. Are those files deleted, or are they rewritten, or what?
Delta implements MERGE by physically rewriting existing files. It is implemented in two steps.Perform an inner join between the target table and source table to select all files that have matches.Perform an outer join between the selected files in t...
I know that when deletes are made from a Delta table the underlying files are not actually removed. For compliance reasons I need to able to truly delete the records. How can I know which files need to be removed, and is there a way to remove them ot...
Here is a document explaining best practices for GDPR and CCPA compliance using Delta Lake. Specifically on cleaning up stale data - you can use the VACUUM function to remove files that are no longer referenced by a Delta table and are older than a s...
Dataframe write to SQL Server table containing Always autogenerate column fails. I am using Apache Spark Connector for SQL Server and Azure SQL. When autogenerate field are not included in dataframe, I encountered - "No key found " error If auto-gene...
I would like to know if I can connect using to DBconnect to any DBR version or if only the supported version will work?
Only the following Databricks Runtime versions are supported:Databricks Runtime 8.1 ML, Databricks Runtime 8.1Databricks Runtime 7.3 LTS ML, Databricks Runtime 7.3 LTSDatabricks Runtime 6.4 ML, Databricks Runtime 6.4Databricks Runtime 5.5 LTS ML, Dat...
Currently there is no concept of "Cluster Owner". https://docs.databricks.com/security/access-control/cluster-acl.html#cluster-level-permissionsSo you have to clone the cluster, thus making the person who cloned it the creator of the new cluster. The...
I would like to know if there is a way to connect to Databricks cluster using my IDE
Databricks connect allows you to connect your favorite IDE to Databricks clusters. You can find more details on how to set it up and install all the libraries https://docs.databricks.com/dev-tools/databricks-connect.html
There’s two places to leverage Github for content management and version control in DatabricksRepos for Git integration - Repos are folders whose contents are co-versioned together by syncing them to a remote Git repository. Repos can contain only Da...
If you have the following Apache Pig FOREACH GENERATE statement:XBCUD_Y_TMP1 = FOREACH (FILTER XBCUD BY act_ind == 'Y') GENERATE cust_hash_key,CONCAT(brd_abbr_cd,ctry_cd) as brdCtry:chararray,updt_dt_hash_key;the equivalent code in Apache Spark is:XB...
the equivalent code in Apache Spark is:XBCUD_Y_TMP1_DF = (XBCUD_DF .filter(col("act_ind") == "Y") .select(col("cust_hash_key"), concat(col("brd_abbr_cd"),col("ctry_cd")).alias("brdCtry"), col("updt_dt_hash_key")) )
What timezone is the “timestamp” value in the Databricks Usage log ?Is it UTC?timestamp2020-12-01T00:59:59.000ZNeed to match this to AWS Cost Explorer timezone for simplicity.It's UTC.Please see timestamp under Audit Log Schema https://docs.databrick...
UTC
I'm trying to create a new cluster in Databricks on Azure using databricks-cli.I'm using the following command:databricks clusters create --json '{ "cluster_name": "template2", "spark_version": "4.1.x-scala2.11" }'And getting back this error: Error: ...
I found the right answer here.The correct format to run this command on azure is:databricks clusters create --json '{ "cluster_name": "my-cluster", "spark_version": "4.1.x-scala2.11", "node_type_id": "Standard_DS3_v2", "autoscale" : { "min_workers": ...
Is it possible to read a Delta table directly into a Pandas Dataframe?
You'd have convert a delta table to pyarrow and then use to_pandas. See https://databricks.com/blog/2020/12/22/natively-query-your-delta-lake-with-scala-java-and-python.html for details# Create a Pandas Dataframe by initially converting the Delta Lak...
Why do we need the ec2:CreateTags and ec2:DeleteTags permissions?Are they required?Are ec2 tags used internally as well?
Yes, it’s required. It’s how Databrics tracks and tags resources.The tags are used to identify the owner of clusters on the AWS side and Databricks uses the tag information internally as well.
Yes. We can convert an existing workspace to PrivateLink on E2.So you can have one workspace that's on PL and one that's not.Please contact your Databricks Representative and we can help you make this change.
How is the host subnet and container subnet used with vnet injection?
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