add mysql example

examples/mysql/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "mysql"
+edition = "2021"
+version.workspace = true
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+luna-orm = "0.3.1"
+sqlx = { version = "0.7", features = [ "runtime-tokio" ] }
+tokio = { version = "1.35.1", features = ["full"] }

examples/mysql/src/main.rs

@@ -0,0 +1,18 @@
+use luna_orm::prelude::*;
+use luna_orm::LunaOrmResult;
+
+#[tokio::main]
+async fn main() -> LunaOrmResult<()> {
+    // 2. create a DB instance.
+    let mut db: DB<MysqlDatabase> = MysqlDatabase::build("localhost/test", "user", "passwod")
+        .await?
+        .into();
+
+    // 3. optional: you may need to create the table for the first time.
+    let result = db.execute_plain(
+        "CREATE TABLE IF NOT EXISTS `user`(`id` INT PRIMARY KEY, `age` INT, `name` VARCHAR(64))",
+    ).await?;
+
+    println!("result: {}", result.rows_affected());
+    Ok(())
+}