Dapper 存储过程、事务等 Dapper 增删改查

接上一篇《Dapper 增删改查》

0.存储过程

create proc p_login
@Name nvarchar(16),
@Password nvarchar(128),
@result nvarchar(128) output
as
begin
if(exists(select * from Users where Name=@Name and Password=@Password))
 set @result='登陆成功'
else
 set @result='用户名或密码错误'
end

1.执行存储过程

IDbConnection conn = new SqlConnection(connStr);
var pars = new DynamicParameters();
pars.Add("@Name", "bj");
pars.Add("@Password", "123456");
pars.Add("@result", "", DbType.String, ParameterDirection.Output);
conn.Execute("p_login", pars, commandType: CommandType.StoredProcedure);
string result = pars.Get<string>("@result");

2.事务操作

IDbConnection conn = new SqlConnection(connStr);
conn.Open();//手动打开
IDbTransaction tran = conn.BeginTransaction();
int result = conn.Execute("delete from users", transaction: tran);//将事务分配给命令
if (result > 0)
    tran.Rollback();
else
    tran.Commit();