- 8139 Views
- 2 replies
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Resolved! Best way to get one row back per ID? Select Distinct is not working.
Here is the current output for my select statement. I would like it to return one row for this jobsubmissionid, where it selects only the non-zero value from each of the rows. I tried using SELECT DISTINCT jobsubmissionidbut it still returned 5 rows.
- 8139 Views
- 2 replies
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Is that the complete query you are using. I'm guessing that you are using select distinct * from table_name. If you wanted a individual column distinct value you have to apply a filter condition or aggregate the data accordingly. Anyways, a complete ...
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- 20298 Views
- 11 replies
- 52 kudos
Resolved! Data Engineering with Databricks V2 or V3 for qualification in a few months time
If I am new to Databricks and is aiming to get qualification some point Dec2022 or Jan 2023, should I be studying the material Data Engineering with Databricks V2 or V3?
- 20298 Views
- 11 replies
- 52 kudos
- 52 kudos
I would suggest to go for V3 because the course Data Engineering with Databricks (V3) is the latest version as of now and was released on 14th October 2022. So, this version would have more topics in comparison to V2.
- 52 kudos
- 31613 Views
- 19 replies
- 43 kudos
Resolved! Data Engineering Professional Practice exam
I'd like to ask if there is a tentative date to release Databricks Data Engineering practice exam. Thank you!
- 31613 Views
- 19 replies
- 43 kudos
- 43 kudos
No, as of now there is no practice exam available for this certification but a good way to get an idea about the exam would be appearing for it once. There are multiple trainings going on from Databricks, attending which you can get the voucher code ...
- 43 kudos
- 1855 Views
- 0 replies
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UDF function while registering- PicklingError
PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers.I...
- 1855 Views
- 0 replies
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- 10642 Views
- 6 replies
- 2 kudos
Resolved! How to see if condition is True / False for all rows in a DataFrame?
Assume that I have a Spark DataFrame, and I want to see if records satisfy a condition.Example dataset:# Prepare Data data = [('A', 1), \ ('A', 2), \ ('B', 3) ] # Create DataFrame columns= ['col_1', 'col_2'] df = spark.createDataF...
- 10642 Views
- 6 replies
- 2 kudos
- 2 kudos
Hi you can use display() or show() function that will provide you expected results.
- 2 kudos
- 2338 Views
- 1 replies
- 3 kudos
Unable to read image and vedio data in Databricks using OpenCV.
I have tried reading image and video data in Azure databricks using OpenCv. When I have checked the type of image, it’s shown as “NonType” and when I tried with vedio file, the file itself was not being opened. (Note: these files are stored on azure ...
- 2338 Views
- 1 replies
- 3 kudos
- 3 kudos
Kindly let me know if you find the answer.!!
- 3 kudos
- 1956 Views
- 0 replies
- 0 kudos
Azure Databricks job and exception handling
Hi,I'm working on Azure Databricks and I created two jobs, one based on a python wheel and the other based on a notebook, with the same code. The code get data from Azure blob storage, process data with pyspark and send data to EventHub. The whole co...
- 1956 Views
- 0 replies
- 0 kudos
- 3425 Views
- 5 replies
- 2 kudos
Databricks Certified Data Engineer Associate Certificate and Badge not received
I have attempted the exam and also got passed but I have not received the badge and certificate. I have also raised the request but I have not got any response yet. It is urgently required. I request the databrick team to provide me with the same as ...
- 3425 Views
- 5 replies
- 2 kudos
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Hi @Garvita Kumari Just a friendly follow-up. Are you able to get your certification? If yes, then mark the answer as best or if you need further assistance kindly let me know.Thanks and Regards
- 2 kudos
- 3514 Views
- 3 replies
- 0 kudos
Jobs are failed with AWS_INSUFFICIENT_FREE_ADDRESSES_IN_SUBNET_FAILURE
We have assigned 3 dedicated subnets (one per AZ ) to the Databricks workspace each with /24 CIDR but noticed that all the jobs are running into a single subnet which causes AWS_INSUFFICIENT_FREE_ADDRESSES_IN_SUBNET_FAILURE.Is there a way to segregat...
- 3514 Views
- 3 replies
- 0 kudos
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@karthik p Have configured one subnet per AZ(total 3). Have followed the same steps as mentioned in the document. Is there a way to check whether the Databricks uses all the subnets or not?@Debayan Mukherjee am not getting how to use LB in this set...
- 0 kudos
- 15034 Views
- 3 replies
- 5 kudos
What is the timeout for dbutils.notebook.run, timeout = 0 ?
Hello everyone,I have several notebooks (around 10) and I want to run them in a sequential order. At first I thought of using %run but I have a variable that is repeatedly used in every notebook. So now I am thinking to pass that variable from one ma...
- 15034 Views
- 3 replies
- 5 kudos
- 5 kudos
Hi @pavan venkata Yes, as the document says 0 means no timeout. It means that the notebook will take it's sweet time to complete execution without throwing an error due to a time limit. Be it if the notebook takes 1 min or 1 hour or 1 day or more. H...
- 5 kudos
- 7696 Views
- 6 replies
- 3 kudos
Resolved! How to parse/extract/format a string based a pattern?
How to parse, extract or form a string based on a pattern?SQL server has a function which will format the string based on a pattern. example,a string is "abcdefgh", the pattern is XX-XX-XXXX,the the string will be "ab-cd-efgh".How to archive this wit...
- 7696 Views
- 6 replies
- 3 kudos
- 3 kudos
@Tim zhang ,thanks for your code, and here is your answer I asked this question in Stackoverflow and got this answer Here is the Stackoverflow link- https://stackoverflow.com/questions/74845760/how-to-parse-a-pattern-and-use-it-to-format-a-string-u...
- 3 kudos
- 8805 Views
- 5 replies
- 9 kudos
Reading data from "dbfs:/mnt/"
Hi community,I don't know what is happening TBH. I have a use case where data is written to the location "dbfs:/mnt/...", don't ask me why it's mounted, it's just a side project. I do believe that data is stored in ADLS2.I've been trying to read the ...
- 8805 Views
- 5 replies
- 9 kudos
- 9 kudos
this is really interesting never faced this type od situation @Pat Sienkiewicz can you please share whole code by that we can test and debug this in our systemThanksAviral
- 9 kudos
- 13431 Views
- 12 replies
- 2 kudos
Resolved! DLT pipeline failure - Detected a data update... This is currently not supported
We are using DLT pipeline in Databricks workspace hosted by Microsoft Azure platform which is failing intermittently and for unclear reason.The pipeline is as follows:spark.readStream.format("delta").option("mergeSchema", "true").option("ignoreChange...
- 13431 Views
- 12 replies
- 2 kudos
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Ok, so after doing some investigation on the way to resolving my original question, I think we're getting some clarity after all.Consider the following data frame that is ingested by DLT streaming pipeline:dfMock = spark.sparkContext.parallelize([[1,...
- 2 kudos
- 1782 Views
- 1 replies
- 0 kudos
Row Level Validation
I have two array one of devl other one is prod.Inside this there are many tables .How do i compare and check the count difference.Wanted to create a automated script so as to check the count difference and perform row level validation.Pyspark script...
- 1782 Views
- 1 replies
- 0 kudos
- 0 kudos
Hi, You can use except command for the same. Please refer: https://stackoverflow.com/questions/70366209/databricks-comparing-two-tables-to-see-which-records-are-missing. Please let us know if this helps.
- 0 kudos
- 1706 Views
- 2 replies
- 1 kudos
Databricks SQL permission problems
We are using a catalog and normally I have the ALL PREVELAGES user status but Im not able to modify the SQL script which is created by some of my colleagues. They have to give me an access and after that Im able to modify. How can I solve this proble...
- 1706 Views
- 2 replies
- 1 kudos
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Hi, when you are not able to modify could you please confirm the error you are receiving? Also, you can refer to https://docs.databricks.com/_static/notebooks/set-owners-notebook.html and https://docs.databricks.com/sql/admin/transfer-ownership.html
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