Usage

Simple statement

connection.createStatement("INSERT INTO `person` (`first_name`, `last_name`) VALUES ('who', 'how')")
    .execute(); // return a Publisher include one Result

Parametrized statement

connection.createStatement("INSERT INTO `person` (`birth`, `nickname`, `show_name`) VALUES (?, ?name, ?name)")
    .bind(0, LocalDateTime.of(2019, 6, 25, 12, 12, 12))
    .bind("name", "Some one") // Not one-to-one binding, call twice of native index-bindings, or call once of name-bindings.
    .add()
    .bind(0, LocalDateTime.of(2009, 6, 25, 12, 12, 12))
    .bind(1, "My Nickname")
    .bind(2, "Naming show")
    .returnGeneratedValues("generated_id")
    .execute(); // return a Publisher include two Results.

• All parameters must be bound before execute, even parameter is null (use bindNull to bind null).
• It will be using client-preparing by default, see useServerPrepareStatement in configuration.
• In one-to-one binding, because native MySQL prepared statements use index-based parameters, index-bindings will have better performance than name-bindings.

Batch statement

connection.createBatch()
    .add("INSERT INTO `person` (`first_name`, `last_name`) VALUES ('who', 'how')")
    .add("UPDATE `earth` SET `count` = `count` + 1 WHERE `id` = 'human'")
    .execute(); // return a Publisher include two Results.

The last ; will be removed if and only if last statement contains ';', and statement has only whitespace follow the last ;.

Transactions

connection.beginTransaction()
    .then(Mono.from(connection.createStatement("INSERT INTO `person` (`first_name`, `last_name`) VALUES ('who', 'how')").execute()))
    .flatMap(Result::getRowsUpdated)
    .thenMany(connection.createStatement("INSERT INTO `person` (`birth`, `nickname`, `show_name`) VALUES (?, ?name, ?name)")
        .bind(0, LocalDateTime.of(2019, 6, 25, 12, 12, 12))
        .bind("name", "Some one")
        .add()
        .bind(0, LocalDateTime.of(2009, 6, 25, 12, 12, 12))
        .bind(1, "My Nickname")
        .bind(2, "Naming show")
        .returnGeneratedValues("generated_id")
        .execute())
    .flatMap(Result::getRowsUpdated)
    .then(connection.commitTransaction());