Skip to main content

Free Databricks Data Engineer Professional Practice Exam 7 (2026)

60 free practice questions with explanations…

Labels:

Comments

Post a Comment

Popular posts from this blog

ACID? 🤔

In the world of data engineering and warehousing projects, the concept of ACID transactions is crucial to ensure data consistency and reliability. ACID transactions refer to a set of properties that guarantee database transactions are processed reliably and consistently. ACID stands for Atomicity , Consistency , Isolation , and Durability . Atomicity : This property ensures that a transaction is treated as a single, indivisible unit of work. Either the entire transaction completes successfully, or none of it does. If any part of the transaction fails, the entire transaction is rolled back, and the database is returned to its state before the transaction began. Consistency : This property ensures that the transaction leaves the database in a valid state. The database must enforce any constraints or rules set by the schema. For example, if a transaction tries to insert a record with a duplicate primary key, the database will reject the transaction and roll back any changes that have alre...
Post a Comment
Read more

CETAS in Synapse Analytics

In Azure Synapse Analytics, creating external tables can be a powerful way to work with large volumes of data in various file formats without loading it into the data warehouse. The CREATE EXTERNAL TABLE AS SELECT (CETAS) command is a useful feature in Synapse Analytics that allows you to create external tables directly from SQL SELECT statements. In this blog post, we will explore how to use CETAS with the OpenRowset function to create external tables in Synapse Analytics. What is CREATE EXTERNAL TABLE AS SELECT (CETAS)? The CETAS command in Azure Synapse Analytics is a powerful feature that enables you to create an external table from the results of a SQL SELECT statement. With CETAS, you can create an external table directly from the results of a query, which can be useful for creating ad-hoc reports, running data transformations, or performing other operations on data outside of the data warehouse. CETAS can be used to create external tables in various file formats, including Parqu...
Post a Comment
Read more