include-oracle-sql is an extension of include-sql for using Oracle SQL in Rust. It completes include-sql by providing impl_sql macro to generate database access methods from the included SQL. include-oracle-sql uses Sibyl for database access.
Write your SQL and save it in a file. For example, let's say the following is saved as library.sql in the project's sql folder:
-- name: get_loaned_books ?
--
-- Returns the list of books loaned to a patron
--
-- # Parameters
--
-- param: user_id: &str - user ID
--
SELECT book_title
FROM library
WHERE loaned_to = :user_id
ORDER BY 1
-- name: loan_books!
--
-- Updates the book records to reflect loan to a patron
--
-- # Parameters
--
-- param: book_titles: &str - book titles
-- param: user_id: &str - user ID
--
UPDATE library
SET loaned_to = :user_id
, loaned_on = current_timestamp
WHERE book_title IN (:book_titles)And then use it in Rust as:
use include_oracle_sql::{include_sql, impl_sql};
include_sql!("sql/library.sql");
fn main() -> sibyl::Result<()> {
let db_name = std::env::var("DBNAME").expect("database name");
let db_user = std::env::var("DBUSER").expect("user name");
let db_pass = std::env::var("DBPASS").expect("password");
let oracle = sibyl::env()?;
let session = oracle.connect(&db_name, &db_user, &db_pass)?;
db.loan_books(&["War and Peace", "Gone With the Wind"], "Sheldon Cooper")?;
db.get_loaned_books("Sheldon Cooper", |row| {
let book_title : &str = row.get("BOOK_TITLE")?;
println!("{}", book_title);
Ok(())
})?;
Ok(())
}The included documentation describes the supported SQL file format and provides additional details on the generated code.
- include-sql changed optional statement terminator from
;to/. SQL files that used;terminator would need to change it to/or remove it completely.