I have a table which has a column of data type 'bigint'. While overwriting it with new data, given that I do full loads, I used 'mergeSchema' to handle schema changes. The new data's datatype was int. I thought mergeSchema can easily handle that, but...
Hello Everyone,We are currently working on a cost analysis initiative to gain deeper insights into our Databricks usage. As part of this effort, we are trying to calculate the hourly cost of each Databricks compute instance by utilizing the Azure Ret...
@saicharandeepb have you looked at the system billing tables in Databricks yet? https://learn.microsoft.com/en-us/azure/databricks/admin/system-tables/billing There seems to be a field that can display the unit usage in DBU. Same in this table aswel...
Hi All,I’m currently working on a Proof of Concept (POC) to migrate existing Talend ETL jobs to Databricks. The goal is to leverage Databricks for data processing and orchestration while moving away from Talend.I’d appreciate insights on the followin...
I was reading the data type rules and found about least common type.I have a doubt. What is the least common type of STRING and INT? The referred link gives the following example saying the least common type is BIGINT.-- The least common type between...
The following statement gives different outputs in different computes.In Databricks, 15.4 LTS%sqlSELECT typeof(coalesce(5, '6'));-- OutputstringIn Serverless, environment version 4%sqlSELECT typeof(coalesce(5, '6'));-- OutputbigintThere are other cas...
@Dhruv-22 Regarding your 1st question, I'm not sureYou can refer to https://docs.databricks.com/aws/en/sql/language-manual/parameters/ansi_mode#system-default to understand what happens when ansi mode is disabled
We have two streaming tables : customer_info and customer_info_history and we joined them using full join to create temp table in pyspark and now we want to eliminate the de-duped records from this temp table. Tried using row_number() but facing bel...
Hello @anusha98 , You’re hitting a real limitation of Structured Streaming: non-time window functions (like row_number() over (...)) aren’t allowed on streaming DFs. You need to use agg().max() to get the “latest value per key” @dlt.table(name="temp_...
Trying to read a accented file(French characters) but the spark.readStream function is not working and special characters turn into something strange(ex. �) spark.readStream .format("cloudfiles") .option("cloudFiles....
Hello @AmarKap , When Spark decodes CP1252 bytes as UTF-8/ISO-8859-1, you’ll see the replacement char like � Can you read the file as : df = (spark.readStream.format("cloudFiles").option("cloudFiles.format", "text").option("encoding", "windows-1252")...
HelloIm optmizing a big notebook and have encountered many times the tip from databricks that says "Unused range join hints". Reading the documentation for reference, I have been able to supress that warning in almost all cells, but some of then rema...
Hi @Gustavo_AzTry to use explain to understand what's happening. https://spark.apache.org/docs/latest/sql-ref-syntax-qry-explain.html
We are using PySpark and notice that when we are doing many transformations/aggregations/joins of the data then at some point the execution time of simple task (count, display, union of 2 tables, ...) become very slow even if we have a small data (ex...
Hi,We forgot to say that we were using a single node cluster (E class with 16 cores). Often in our projects we need to used library that works mainly with data in memory. We also need to remember that here we are not referring to a large data.When we...
Working with databricks asset bundles (using the new python-based definition), if you have a job_cluster defined using driver_node_type_id, and then update it to no longer have it defined, but only node_type_id, the driver node_type never gets update...
Thanks for the details. The way it works is once you set it when you first define the job cluster it does not change when you later remove driver_node_type_id from the spec (i.e., omit it), Databricks does not automatically revert it to match the nod...
The documentation is sparse about how to migrate a partition table to a liquid cluster as the Alter table suggested in the documentation doesnt work when its a partitioned table.The comments on this forum suggest replaying the stream. And this is wha...
Greetings @EndreM , I did some digging internally and I have come up with some helpful tips/tricks to help guide you through this issue: Based on your situation, you're encountering several common challenges when migrating a partitioned table to liqu...
I have the following terraform code to create a databricks group and add permission to a workflow: resource "databricks_group" "dbx_group" { display_name = "ENV_MONITORING_TEAM" } resource "databricks_permissions" "workflow_permission" { job_id ...
Greetings @soumiknow , I did some digging internally and found something that may help: Based on the information gathered, I can now draft a comprehensive response to this Databricks Community question about the Terraform authentication issue. ## Dra...
I am working on a testing notebook where the table that is tested can be given as a widget. I wanted to write it in SQL. The notebook does the following steps in a cycle that should run 10 times:1. Store the starting version of a delta table in a var...
Thank you! I realised that the example I gave was bad. However, what I was missing is that I did not know how to set a variable in SQL scripting. Including the SET command within the sql string does not work, you have to use the EXECUTE IMMEDIATE ......
Hi, i wanted to know i anyone has given databricks professional data engineering exam recently after oct 2025. I wanted to know if the syllabus has been updated or not ?
Hi @AbhishekNakka ,Yes, the syllabus has been updated. The current exam objectives you can find at below link:Databricks Certified Data Engineer Professional September 2025 - Exam Guide.docxDatabricks Certified Data Engineer Professional | Databricks
Until a few days ago, I was working with Databricks Connect using the VS Code extension, and everything worked perfectly.In my .databrickscfg file, I had authentication configured like this: [name]host:token: When I ran my code, everything worked fi...
Hi @DatabricksEngi1 - Please ensure you have a Python Venv set up for each Python version that you use with Databricks Connect. Also, I have given step-by-step ways to debug the issue, clear the cache, etc [Read the files and instructions carefully b...
| User | Count |
|---|---|
| 1616 | |
| 790 | |
| 466 | |
| 349 | |
| 287 |
