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Easily connect Java/J2EE applications with real-time data from Excel spreadsheets. Use Excel to manage the data that powers your applications.

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Load Excel Data to a Database Using Embulk


Use CData JDBC drivers with the open source ETL/ELT tool Embulk to load Excel data to a database.

Embulk is an open source bulk data loader. When paired with the CData JDBC Driver for Microsoft Excel, Embulk easily loads data from Excel to any supported destination. In this article, we explain how to use the CData JDBC Driver for Microsoft Excel in Embulk to load Excel data to a MySQL dtabase.

With built-in optimized data processing, the CData JDBC Driver offers unmatched performance for interacting with live Excel data. When you issue complex SQL queries to Excel, the driver pushes supported SQL operations, like filters and aggregations, directly to Excel and utilizes the embedded SQL engine to process unsupported operations client-side (often SQL functions and JOIN operations).

Configure a JDBC Connection to Excel Data

Before creating a bulk load job in Embulk, note the installation location for the JAR file for the JDBC Driver (typically C:\Program Files\CData\CData JDBC Driver for Microsoft Excel\lib).

Embulk supports JDBC connectivity, so you can easily connect to Excel and execute SQL queries. Before creating a bulk load job, create a JDBC URL for authenticating with Excel.

The ExcelFile, under the Authentication section, must be set to a valid Excel File.

Built-in Connection String Designer

For assistance in constructing the JDBC URL, use the connection string designer built into the Excel JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

java -jar cdata.jdbc.excel.jar

Fill in the connection properties and copy the connection string to the clipboard.

Below is a typical JDBC connection string for Excel:

jdbc:excel:Excel File='C:/MyExcelWorkbooks/SampleWorkbook.xlsx';

Load Excel Data in Embulk

After installing the CData JDBC Driver and creating a JDBC connection string, install the required Embulk plugins.

Install Embulk Input & Output Plugins

  1. Install the JDBC Input Plugin in Embulk.
    https://github.com/embulk/embulk-input-jdbc/tree/master/embulk-input-jdbc
    2. embulk gem install embulk-input-jdbc
  2. In this article, we use MySQL as the destination database. You can also choose SQL Server, PostgreSQL, or Google BigQuery as the destination using the output Plugins.
    https://github.com/embulk/embulk-output-jdbc/tree/master/embulk-output-mysql embulk gem install embulk-output-mysql

With the input and output plugins installed, we are ready to load Excel data into MySQL using Embulk.

Create a Job to Load Excel Data

Start by creating a config file in Embulk, using a name like excel-mysql.yml.

  1. For the input plugin options, use the CData JDBC Driver for Microsoft Excel, including the path to the driver JAR file, the driver class (e.g. cdata.jdbc.excel.ExcelDriver), and the JDBC URL from above
  2. For the output plugin options, use the values and credentials for the MySQL database

Sample Config File (excel-mysql.yml)

in: type: jdbc driver_path: C:\Program Files\CData[product_name] 20xx\lib\cdata.jdbc.excel.jar driver_class: cdata.jdbc.excel.ExcelDriver url: jdbc:excel:Excel File='C:/MyExcelWorkbooks/SampleWorkbook.xlsx'; table: "Sheet" out: type: mysql host: localhost database: DatabaseName user: UserId password: UserPassword table: "Sheet" mode: insert

After creating the file, run the Embulk job.

embulk run excel-mysql.yml

After running the the Embulk job, find the Salesforce data in the MySQL table.

Load Filtered Excel Data

In addition to loading data directly from a table, you can use a custom SQL query to have more granular control of the data loaded. You can also perform increment loads by setting a last updated column in a SQL WHERE clause in the query field.

in: type: jdbc driver_path: C:\Program Files\CData[product_name] 20xx\lib\cdata.jdbc.excel.jar driver_class: cdata.jdbc.excel.ExcelDriver url: jdbc:excel:Excel File='C:/MyExcelWorkbooks/SampleWorkbook.xlsx'; query: "SELECT Name, Revenue FROM Sheet WHERE [RecordId] = 1" out: type: mysql host: localhost database: DatabaseName user: UserId password: UserPassword table: "Sheet" mode: insert

More Information & Free Trial

By using CData JDBC Driver for Microsoft Excel as a connector, Embulk can integrate Excel data into your data load jobs. And with drivers for more than 200+ other enterprise sources, you can integrate any enterprise SaaS, big data, or NoSQL source as well. Download a 30-day free trial and get started today.