Query CSV Data in DataGrip

DataGrip is a database IDE that allows SQL developers to query, create, and manage databases. When paired with the CData JDBC Driver for CSV, DataGrip can work with live CSV data. This article shows how to establish a connection to CSV data in DataGrip.

Create a New Driver Definition for CSV

The steps below describe how to create a new Data Source in DataGrip for CSV.

1. In DataGrip, click File -> New > Project and name the project
2. In the Database Explorer, click the plus icon () and select Driver.
3. In the Driver tab:
   • Set Name to a user-friendly name (e.g. "CData CSV Driver")
   • Set Driver Files to the appropriate JAR file. To add the file, click the plus (), select "Add Files," navigate to the "lib" folder in the driver's installation directory and select the JAR file (e.g. cdata.jdbc.csv.jar).
   • Set Class to cdata.jdbc.csv.CSV.jar
   Additionally, in the advanced tab you can change driver properties and some other settings like VM Options, VM environment, VM home path, DBMS, etc
   • For most cases, change the DBMS type to "Unknown" in Expert options to avoid native SQL Server queries (Transact-SQL), which might result in an invalid function error
4. Click "Apply" then "OK" to save the Connection

Configure a Connection to CSV

1. Once the connection is saved, click the plus (), then "Data Source" then "CData CSV Driver" to create a new CSV Data Source.
2. In the new window, configure the connection to CSV with a JDBC URL.

   Built-in Connection String Designer

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

   java -jar cdata.jdbc.csv.jar

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

   The DataSource property must be set to a valid local folder name.

   Also, specify the IncludeFiles property to work with text files having extensions that differ from .csv, .tab, or .txt. Specify multiple file extensions in a comma-separated list. You can also set Extended Properties compatible with the Microsoft Jet OLE DB 4.0 driver. Alternatively, you can provide the format of text files in a Schema.ini file.

   Set UseRowNumbers to true if you are deleting or updating in CSV. This will create a new column with the name RowNumber which will be used as key for that table.

3. Set URL to the connection string, e.g., jdbc:csv:DataSource=MyCSVFilesFolder;
4. Click "Apply" and "OK" to save the connection string

At this point, you will see the data source in the Data Explorer.

Execute SQL Queries Against CSV

To browse through the CSV entities (available as tables) accessible through the JDBC Driver, expand the Data Source.

To execute queries, right click on any table and select "New" -> "Query Console."

In the Console, write the SQL query you wish to execute. For example: SELECT City, SUM(TotalDue) FROM Customer GROUP BY City

Download a free, 30-day trial of the CData JDBC Driver for CSV and start working with your live CSV data in DataGrip. Reach out to our Support Team if you have any questions.