Struct UpdateBuilder 

pub struct UpdateBuilder { /* private fields */ }

更新构建器

Implementations

impl UpdateBuilder

pub fn new(table: String, engine: Arc<RwLock<MemoryEngine>>) -> Self

pub fn eq(self, field: &str, value: DbValue) -> Self

pub fn lt(self, field: &str, value: DbValue) -> Self

pub fn gt(self, field: &str, value: DbValue) -> Self

pub fn set(self, field: &str, value: DbValue) -> Self

pub fn execute(self) -> DbResult<usize>

执行更新，返回受影响的行数