If the column name specified not found, it creates a new column with the value specified. Update from Another Table in SQL - Travis Horn Below is a highly simplified version of my problem. Each record in the scores table has a personId which is linked people.id and a score. Azure Synapse Spark and SQL Serverless External Tables Table Deletes, Updates, and Merges - Delta Lake CREATE DATABASE IF NOT EXISTS ArupzDB. Here, customers is the original Delta table that has an address column with missing values. You need: 1) A Synapse Workspace ( SQL OD will be there after the workspace creation) 2)Add Spark to the workspace. Let us firstly consider a simple example that we used above. The updated data exists in Parquet format. Above the Tables folder, click Create Table. Spark withColumn () function of the DataFrame is used to update the value of a column. Below sample program can be referred in order to UPDATE a table via pyspark: from pyspark import SparkConf, SparkContext from pyspark.sql import SQLContext from pyspark.sql.types import * from pyspark import SparkConf, SparkContext from pyspark.sql import Row, SparkSession spark_conf = SparkConf().setMaster('local').setAppName('databricks') Here is the syntax of INSERT INTO statement. We will calculate the greatest value of SQL numbers using the MAX () function. Click create in Databricks menu. How to UPDATE a table using pyspark via the Snowflake Spark connector. The updated data exists in Parquet format. Spark SQL - Hive Tables - Tutorials Point Make sure the columns are of compatible SQL . without any joining condition) and then choosing an arbitrary row (LIMIT 1 without ORDER BY). Next, click on the Connection tab. table_alias. Many ETL applications such as loading fact tables use an update join statement where you need to update a table using data from some other table. UPDATE table_name SET old_value = new_value WHERE condition. Spark Dataframe Update Column Value - SQL & Hadoop SQL UPDATE people10m SET gender = 'Female' WHERE gender = 'F'; UPDATE people10m SET gender = 'Male' WHERE gender = 'M'; UPDATE delta . table_name. When using the UPDATE statement, all of the rows in the table can be modified or just a subset may be updated using a condition.