hdbconnect

A pure rust SQL driver for SAP HANA(TM).

Usage

Add hdbconnect to the dependencies section in your project's Cargo.toml:

[dependencies]

hdbconnect = "0.15"

Assume you have a HANA (e.g. a HANA Express) accessible at port 30333 on host hxehost, and you can log on to it as user HORST with password SECRET.

Then a first simple test might look like this:

use hdbconnect::{Connection, HdbResult, IntoConnectParams};

pub fn main() -> HdbResult<()> {
    // Get a connection
    let params = "hdbsql://HORST:SECRET@hxehost:39013";
    let mut connection =
        Connection::new(params.into_connect_params()?)?;

    // Cleanup if necessary, and set up a test table
    connection.multiple_statements_ignore_err(vec![
        "drop table FOO_SQUARE"
    ]);
    connection.multiple_statements(vec![
        "create table FOO_SQUARE ( f1 INT primary key, f2 INT)",
    ])?;

    // Insert some test data
    let mut insert_stmt = connection.prepare(
        "insert into FOO_SQUARE (f1, f2) values(?,?)"
    )?;

    for i in 0..100 {
        insert_stmt.add_batch(&(i, i * i))?;
    }
    insert_stmt.execute_batch()?;

    // Read the table data directly into a rust data structure
    let stmt = "select * from FOO_SQUARE order by f1 asc";
    let n_square: Vec<(i32, u64)> =
        connection.query(stmt)?.try_into()?;

    // Verify ...
    for (idx, (n, square)) in n_square.into_iter().enumerate() {
        assert_eq!(idx, n);
        assert_eq!(idx * idx, square);
    }
    Ok(())
}

Documentation

See https://docs.rs/hdbconnect/ for the full functionality of hdbconnect.

There you also find more code examples, e.g. in the description of module code_examples.

Crate Features

tls

The tls feature adds the capability to use TLS in the communication to HANA, and adds dependencies to rustls and webpki.

See ConnectParams for how to use hdbconnect with tls.

See HANA in SCP for instructions how to obtain the necessary server certificate from a HANA in SAP Cloud Platform.

Versions

See the change log.