How to load data from Merge to Apache Iceberg

Learn how to use Airbyte to synchronize your Merge data into Apache Iceberg within minutes.

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Set up a Merge connector in Airbyte

Connect to Merge or one of 400+ pre-built or 10,000+ custom connectors through simple account authentication.

Set up Apache Iceberg for your extracted Merge data

Select Apache Iceberg where you want to import data from your Merge source to. You can also choose other cloud data warehouses, databases, data lakes, vector databases, or any other supported Airbyte destinations.

Configure the Merge to Apache Iceberg in Airbyte

This includes selecting the data you want to extract - streams and columns -, the sync frequency, where in the destination you want that data to be loaded.

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How to Sync Merge to Apache Iceberg Manually

Before you begin moving data, ensure you have a thorough understanding of the data structure within the Merge system. This includes knowing the schema, data types, and any relationships between tables. Documenting this information will be crucial for accurately replicating the structure in Apache Iceberg.

Install and configure Apache Iceberg in your desired environment. This typically involves setting up a compatible file system (e.g., Hadoop HDFS or Amazon S3) and ensuring that your analytics engine (such as Apache Spark or Flink) is correctly configured to work with Iceberg. Follow the official Iceberg documentation for specific setup instructions.

Export the data from Merge into a format that can be easily imported into Iceberg, such as CSV or Parquet. This step might involve writing custom scripts or using built-in export features of the Merge platform to extract the data. Ensure that the exported data maintains the integrity and structure of the original data.

Once exported, prepare the data files for import by cleaning and transforming them if necessary. This might include converting data types, normalizing dates, or resolving any discrepancies found in the data during the export process. This step ensures compatibility with Iceberg’s schema requirements.

Using the documented schema from Merge, define the Iceberg table schema. This involves creating tables in Iceberg that mirror the structure of the data from Merge, including defining column types, primary keys, and any other necessary constraints. Use your analytics engine’s DDL (Data Definition Language) to accomplish this.

Import the prepared data files into the newly created Iceberg tables. This can be done using the analytics engine’s data loading commands. For example, if using Apache Spark, you can use the `spark.write.format("iceberg").saveAsTable("table_name")` command to load data into Iceberg. Make sure to load data in batches if the dataset is large to manage memory efficiently.

After loading the data into Iceberg, perform thorough validation checks to ensure data integrity and accuracy. This involves querying the data to verify that all records have been correctly imported and that data types and structures align with expectations. Test a few sample queries to ensure the data behaves as expected within the Iceberg environment.

How to Sync Merge to Apache Iceberg Manually - Method 2:

FAQs

ETL, an acronym for Extract, Transform, Load, is a vital data integration process. It involves extracting data from diverse sources, transforming it into a usable format, and loading it into a database, data warehouse or data lake. This process enables meaningful data analysis, enhancing business intelligence.

Merge is a puzzle game where players combine matching blocks to create new ones and clear the board. The game starts with simple blocks, but as players progress, they encounter more complex shapes and colors. The goal is to merge as many blocks as possible to earn points and advance to higher levels. The game also includes power-ups and special blocks that can help players clear the board more quickly. Merge is a fun and addictive game that challenges players to think strategically and quickly to achieve high scores.

Merge's API provides access to a wide range of healthcare data, including:

1. Patient Data: This includes demographic information, medical history, and clinical notes.

2. Imaging Data: This includes medical images such as X-rays, CT scans, and MRIs.

3. Clinical Trial Data: This includes information on clinical trials, including study design, patient enrollment, and outcomes.

4. Medical Device Data: This includes data from medical devices such as pacemakers, insulin pumps, and blood glucose monitors.

5. Electronic Health Record (EHR) Data: This includes data from EHR systems, such as medication lists, lab results, and vital signs.

6. Genomic Data: This includes genetic information, such as DNA sequencing data and gene expression data.

7. Research Data: This includes data from research studies, such as survey data and clinical trial data.

Overall, Merge's API provides access to a comprehensive set of healthcare data, enabling developers to build innovative applications and solutions that improve patient care and outcomes.

This can be done by building a data pipeline manually, usually a Python script (you can leverage a tool as Apache Airflow for this). This process can take more than a full week of development. Or it can be done in minutes on Airbyte in three easy steps: 
1. Set up Merge to Apache Iceberg as a source connector (using Auth, or usually an API key)
2. Choose a destination (more than 50 available destination databases, data warehouses or lakes) to sync data too and set it up as a destination connector
3. Define which data you want to transfer from Merge to Apache Iceberg and how frequently
You can choose to self-host the pipeline using Airbyte Open Source or have it managed for you with Airbyte Cloud. 

ELT, standing for Extract, Load, Transform, is a modern take on the traditional ETL data integration process. In ELT, data is first extracted from various sources, loaded directly into a data warehouse, and then transformed. This approach enhances data processing speed, analytical flexibility and autonomy.

ETL and ELT are critical data integration strategies with key differences. ETL (Extract, Transform, Load) transforms data before loading, ideal for structured data. In contrast, ELT (Extract, Load, Transform) loads data before transformation, perfect for processing large, diverse data sets in modern data warehouses. ELT is becoming the new standard as it offers a lot more flexibility and autonomy to data analysts.

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