Question 1

How to install xk6-sql for PostgreSQL testing?

Accepted Answer

You need to build a custom k6 binary using xk6 with the xk6-sql extension and the PostgreSQL driver. Run 'xk6 build --with github.com/grafana/xk6-sql@latest --with github.com/grafana/xk6-sql-driver-postgres' and use the generated binary in your tests, as shown in the README examples.

Question 2

xk6-sql vs Apache JMeter for database load testing: which is better?

Accepted Answer

xk6-sql is better for teams already using Grafana k6 and preferring code-based, scalable tests, while JMeter offers a GUI and broader protocol support. xk6-sql excels in tight integration with k6 scripting, but JMeter has more built-in database connectors and a larger community for visual test design.

Question 3

Can I use TypeScript with xk6-sql?

Accepted Answer

Yes, xk6-sql provides TypeScript declaration files for type safety. Configure your project with a jsconfig.json or tsconfig.json file to reference the declaration file, as detailed in the README, to enable IDE autocompletion and error checking.

Question 4

What databases does xk6-sql support?

Accepted Answer

It supports SQL databases like MySQL, PostgreSQL, SQLite, SQL Server, Azure SQL, and ClickHouse through separate driver extensions. Check the xk6-sql-driver GitHub topic for available drivers, as mentioned in the README.

Question 5

How to handle database connections in xk6-sql tests?

Accepted Answer

Import the sql module and driver in your k6 script, use sql.open() to establish a connection, and close it in teardown. The README example shows managing connections with exec and query methods, but connection pooling is handled internally per virtual user.

Question 6

Is there a way to run xk6-sql tests without building from source?

Accepted Answer

No, xk6-sql requires building a custom k6 binary with xk6. There's no pre-built distribution or package manager installation, unlike some other k6 extensions or tools, which adds to the initial setup time.

Question 7

xk6-sql performance impact on k6 tests?

Accepted Answer

Adding SQL operations introduces overhead compared to pure HTTP tests, but xk6-sql is optimized within k6's architecture. However, the extension layer and database drivers can add latency, so it's important to benchmark and adjust test scenarios accordingly.

xk6-sql

What is xk6-sql?

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