Action Syntax show Dataframe df.show() Stop Spark Session spark.stop() Count entries in dataframe df.count() Write to Delta table df.write.format(“delta”).mode(“overwrite”).save(“/venv/storage”) Read from Delta Table df = spark.read.format(“delta”).load(“/venv/storage”) Remove Duplicates df = df.dropDuplicates()
This article explains how to setup a playground environment for data warehousing soluiotion. Testing Delta Lake setup and environment Reference Delta Lake basic official documentation https://delta.io/learn/getting-started https://pypi.org/project/delta-spark https://pypi.org/project/pyspark/3.3.4 Apache Spark / Delta lake Compatibility matrix https://stackoverflow.com/questions/76066363/unable-to-write-df-in-delta-format-on-hdfs
https://stackoverflow.com/questions/76066363/unable-to-write-df-in-delta-format-on-hdfs
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How to assign table permission to security roles. Note : For new tables security roles have to be assigned to the security role for accessing the table. Steps for Assigning new tables to existing role. 3. Select the Environment to Read more…
Gateway is required. Download and install gateway. ODBC connector for maria db to be installed or you will get the following error An exception occurred: The ‘Driver’ property with value ‘{MariaDB ODBC 3.1 Driver}’ doesn’t correspond to an installed ODBC Read more…
Title Access Link Data Warehouse Modelling Guide https://erprealm.com/wp-content/uploads/2024/04/DWC_Acquiring_Preparing_Modeling_Data.pdf CDS Views https://help.sap.com/docs/SAP_S4HANA_CLOUD/c0c54048d35849128be8e872df5bea6d/5418de55938d1d22e10000000a44147b.html?q=CDS%20Views%20in%20Procurement Basic SAP reference guide : DataSphere https://developers.sap.com/tutorials/data-warehouse-cloud-bi1-connect-sac.html Attachments DW Modelling UserGuide
https://community.sap.com/t5/application-development-blog-posts/a-new-generation-of-cds-views-cds-view-entities/ba-p/13488765