- 11381 Views
- 3 replies
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How can I exit from a Notebook which is used as a job?
How can I quit from a notebook in the middle of an execution based on some condition?
- 11381 Views
- 3 replies
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exit(value: String): voidCalling dbutils.notebook.exit in a job causes the notebook to complete successfully. If you want to cause the job to fail, throw an exception.
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- 7441 Views
- 3 replies
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Write empty dataframe into csv
I'm writing my output (entity) data frame into csv file. Below statement works well when the data frame is non-empty. entity.repartition(1).write.mode(SaveMode.Overwrite).format("csv").option("header", "true").save(tempLocation) It's not working wh...
- 7441 Views
- 3 replies
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the same problem here (similar code and the same behavior with Spark 2.4.0, running with spark submit on Win and on Lin) dataset.coalesce(1) .write() .option("charset", "UTF-8") .option("header", "true") .mode(SaveMod...
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- 18461 Views
- 1 replies
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Split a row into multiple rows based on a column value in Spark SQL
Hi, I am trying to split a record in a table to 2 records based on a column value. Please refer to the sample below. The input table displays the 3 types of Product and their price. Notice that for a specific Product (row) only its corresponding col...
- 18461 Views
- 1 replies
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Hi @rishigc You can use something like below. SELECT explode(arrays_zip(split(Product, '+'), split(Price, '+') ) as product_and_price from df or df.withColumn("product_and_price", explode(arrays_zip(split(Product, '+'), split(Price, '+'))).select( ...
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- 7002 Views
- 2 replies
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column wise sum in PySpark dataframe
i have a dataframe of 18000000rows and 1322 column with '0' and '1' value. want to find how many '1's are in every column ??? below is DataSet se_00001 se_00007 se_00036 se_00100 se_0010p se_00250
- 7002 Views
- 2 replies
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Hi Siddhu, You can use df.select(sum("col1"), sum("col2"), sum("col3")) where col1, col2, col3 are the column names for which you would like to find the sum please let us know if it answers your question Thanks
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- 9436 Views
- 1 replies
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How to create a surrogate key sequence which I can use in SCD cases?
Hi Community I would like to know if there is an option to create an integer sequence which persists even if the cluster is shut down. My target is to use this integer value as a surrogate key to join different tables or do Slowly changing dimensio...
- 9436 Views
- 1 replies
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Hi @pascalvanbellen ,There is no concept of FK, PK, SK in Spark. But Databricks Delta automatically takes care of SCD type scenarios. https://docs.databricks.com/spark/latest/spark-sql/language-manual/merge-into.html#slowly-changing-data-scd-type-2 ...
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- 3976 Views
- 1 replies
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How to take distinct of multiple columns ( > than 2 columns) in pyspark datafarme ?
I have 10+ columns and want to take distinct rows by multiple columns into consideration. How to achieve this using pyspark dataframe functions ?
- 3976 Views
- 1 replies
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You can use dropDuplicates https://spark.apache.org/docs/latest/api/python/pyspark.sql.html?highlight=distinct#pyspark.sql.DataFrame.dropDuplicates
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- 21413 Views
- 15 replies
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- 21413 Views
- 15 replies
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Well, just a little bit research, and i found this post below: Hopefully this will help. " registerTempTable() registerTempTable() creates an in-memory table that is scoped to the cluster in which it was created. The data is stored using Hive's high...
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- 20270 Views
- 4 replies
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Displaying HTML Output
I am trying to display the html output or read in an html file to display in databricks notebook from pandas-profiling.import pandas as pd import pandas_profiling df = pd.read_csv("/dbfs/FileStore/tables/my_data.csv", header='infer', parse_dates=Tru...
- 20270 Views
- 4 replies
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What eventually worked for me was displayHTML(profile.to_html()) for the pandas_profiling and displayHTML(profile.html) for the spark_profiling.
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- 6437 Views
- 4 replies
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How can I integrate DataBricks into PyCharm?
Editing notebooks on DataBricks is rather cumbersome because it lacks a lot of features IDEs like PyCharm have. Another problem is that a DataBricks notebook comes with some local state which are not present on my computer. How can I edit notebooks ...
- 6437 Views
- 4 replies
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The documents are out for databricks-connect: https://docs.azuredatabricks.net/user-guide/dev-tools/db-connect.html I've also written up about a few limitations I have found - some with workarounds: https://datathirst.net/blog/2019/3/7/databricks-co...
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- 14553 Views
- 12 replies
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Azure Data Lake Config Issue: No value for dfs.adls.oauth2.access.token.provider found in conf file.
Hi,I have files hosted on an Azure Data Lake Store which I can connect from Azure Databricks configured as per instructions here.I can read JSON files fine, however, I'm getting the following error when I try to read an Avro file.spark.read.format("c...
- 14553 Views
- 12 replies
- 0 kudos
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Taras's answer is correct. Because spark-avro is based on the RDD APIs, the properties must be set in the hadoopConfiguration options. Please note these docs for configuration using the RDD API: https://docs.azuredatabricks.net/spark/latest/data-sou...
- 0 kudos
- 8684 Views
- 4 replies
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Splitting Date into Year, Month and Day, with inconsistent delimiters
I am trying to split my Date Column which is a String Type right now into 3 columns Year, Month and Date. I use (PySpark): <code>split_date=pyspark.sql.functions.split(df['Date'], '-') df= df.withColumn('Year', split_date.getItem(0)) df= df.wit...
- 8684 Views
- 4 replies
- 0 kudos
- 4997 Views
- 4 replies
- 1 kudos
sql delete?
<pre> Hello databricks people, I started working with databricks today. I have a sql script which I developed with sqlite3 on a laptop. I want to port the script to databricks. I started with two sql statements: select count(prop_id) from prop0; del...
- 4997 Views
- 4 replies
- 1 kudos
- 1 kudos
Hey Dan, good to hear you're getting started with Databricks. This is not a limitation of Databricks it's a restriction built into Spark itself. Spark is not a data store, it's a distributed computation framework. Therefore deleting data would be un...
- 1 kudos
- 6243 Views
- 1 replies
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How can we compare two dataframes in spark scala to find difference between these 2 files, which column ?? and value ??.
I have two files and I created two dataframes prod1 and prod2 out of it.I need to find the records with column names and values that are not matching in both the dfs. id_sk is the primary key .all the cols are string datatype dataframe 1 (prod1) id_...
- 6243 Views
- 1 replies
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use full Outer Join in spark SQL
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- 20744 Views
- 2 replies
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Resolved! How to create blank target links in markdown to open url link in new tabs?
I am using markdown to include links urls. I am using the below markdown syntax: [link text](http://example.com) The issue is each time I click the linked text it opens the url in the same tab as the notebook. I want the url to open it in a new ta...
- 20744 Views
- 2 replies
- 0 kudos
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Hi @Ariel Herrera, You can just put html anchor tag in databricks notebook cell. It will open a new tab when you click it. Please try the example below. It works for me in databricks notebook. %md <a href="https://google.com" target="_blank">google ...
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- 9176 Views
- 5 replies
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- 9176 Views
- 5 replies
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This is an old post, however, is this still accurate for the latest version of Databricks in 2019? If so, how to approach the following?1. Connect to many MongoDBs.2. Connect to MongoDB when connection string information is dynamic (i.e. stored in s...
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