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  1. Calculate delta(difference of current and previous row) in sql

    Feb 20, 2014 · And I have to update Delta column. which value is the difference of current row of the same account and preceeding row of the same account assuming there is one transaction …

  2. Apache Spark with Delta Lake on Local Machine - Stack Overflow

    Mar 13, 2023 · I'm trying to learn more about Spark and the Delta Lake format. To try to save on Databricks costs, while learning and experimenting, I've been trying to set Spark with Delta up …

  3. Change the datatype of a column in delta table - Stack Overflow

    May 31, 2021 · Is there a SQL command that I can easily use to change the datatype of a existing column in Delta table. I need to change the column datatype from BIGINT to STRING. Below …

  4. sql - What is the diff between Full table vs Delta table vs …

    Feb 28, 2021 · On contrary with delta load the errors remain and can accumulate within the time. Therefor is a good practice while implementing a delta load is to perform periodical check …

  5. What is the correct way to install the delta module in python?

    Dec 17, 2019 · I was trying to pip install delta-spark, using a python -m venv, and the pylance wasn't able to find the delta package when trying to import "from delta.tables import *".

  6. Insert or Update a delta table from a dataframe in Pyspark

    Feb 23, 2021 · spark.sql("create table IF NOT EXISTS table_name using delta select * from df_table where 1=2") df.write.format("delta").mode("append").insertInto("events") So, every …

  7. How to roll back delta table to previous version - Stack Overflow

    Is there a simple way to choose a previous delta table version as the current/working version? Instead of creating another version by overwrite/truncate, can we just designate a version as …

  8. AWS Glue: Cannot find catalog plugin class for catalog …

    Sep 8, 2023 · AWS Glue: Cannot find catalog plugin class for catalog 'spark_catalog': org.apache.spark.sql.delta.catalog.DeltaCatalog Asked 2 years, 3 months ago Modified 2 …

  9. error "org.apache.spark.SparkException: Cannot find catalog …

    Mar 10, 2013 · then take Delta version and also Scala version u came up with and look up this Delta Spark Table with them. finally get the full version path from top left of the website like …

  10. How to create a Delta Table with local installation of pyspark

    Apr 9, 2024 · I am using a docker image of jupyter/all-spark-notebook, to run my container, which ultimately powers my jupyter notebook by port forwarding from delta import * import pyspark …