![Example
public class Department
{
[Column(Name = "DepartmentId")]
public int Id { get; set; }
[Column(Name = "Nm")]
public string Name { get; set; }
[Column(Name = "Desc")]
public string Description { get; set; }
[Column(Name = "DptLeadId")]
public int DepartmentLeadId { get; set; }
}](https://image.slidesharecdn.com/reviewmicroorminc-170925133138/85/Review-of-micro-Orm-in-c-19-320.jpg)
![Example
public T ExecuteStoredProcedure(string dataBase, object parameters)
{
var connection = new SqlConnection(ConfigurationManager.ConnectionStrings[dataBase].ConnectionString);
SqlMapper.SetTypeMap(typeof(T), new ColumnAttributeTypeMapper<T>());
var result = connection.QueryAsync<T>(ProcedureName, param: parameters,
commandType: CommandType.StoredProcedure).Result.FirstOrDefault();
return result;
}
public List<T> ExecuteStoredProcedureWithListResult(string dataBase, object parameters)
{
var connection = new SqlConnection(ConfigurationManager.ConnectionStrings[dataBase].ConnectionString);
SqlMapper.SetTypeMap(typeof(T), new ColumnAttributeTypeMapper<T>());
var result = connection.QueryAsync<T>(ProcedureName, param: parameters,
commandType: CommandType.StoredProcedure).Result.ToList();
return result;
}](https://image.slidesharecdn.com/reviewmicroorminc-170925133138/85/Review-of-micro-Orm-in-c-20-320.jpg)
Review of micro Orm in c#
- 1. Review of micro ORM in C# Kanstantsin Harbachou
- 2. Agenda • Intro into micro ORM • PetaPoco/Massive • Dapper • SqlFu • TinyORM • Performance Comparison • Example
- 3. Intro into micro ORM • Mapper between objects and database queries • Lightweight • Fast • Usually any powerful features are absent (UoW, Lazy Loading, change tracking, etc.) • Forget about domain model
- 4. When to use? • Small number of queries • Thin communication interface • Utility applications
- 5. PetaPoco/Massive 1. Fluent configuration of mapping and connection string 2. Includes T4 templates to automatically generate POCO classes 3. Not async 4. Tiny 5. Grabbing named parameters from object properties
- 6. Dapper 1.Multi mapping 2.Two kinds of mapping 3.Async 4.Extensions 5.Execute a Command multiple times 6.Buffered vs Unbuffered readers
- 7. SqlFu 1..NET Framework 4.6 2.CoreClr support 3.Async 4.Extensions 5.DDL tools
- 8. TinyORM 1.Helpers for CUD 2.Transactions 3.Task-based async API 4.POCOs 5.Snapshots
- 9. DataBase
- 10. Data People – 2.000.000 records Departments – 2.000.000 records Work statuses – 4 People – Department and People – Status random
- 11. Queries and stored procedures CRUD – 1000 entities Stored procedure Queries
- 14. Update 0 100 200 300 400 500 600 700 Dapper PetaPoco SqlFu Tiny Update
- 15. Delete 145000 150000 155000 160000 165000 170000 175000 180000 185000 190000 Dapper PetaPoco SqlFu Tiny Delete
- 16. Get people with name 52600 52700 52800 52900 53000 53100 53200 53300 53400 Dapper PetaPoco SqlFu Tiny People with name
- 17. Count of people from current department 26400 26600 26800 27000 27200 27400 27600 27800 28000 28200 28400 28600 People from department
- 18. All people from current department with current status 56000 58000 60000 62000 64000 66000 68000 70000 72000 People with status
- 19. Example public class Department { [Column(Name = "DepartmentId")] public int Id { get; set; } [Column(Name = "Nm")] public string Name { get; set; } [Column(Name = "Desc")] public string Description { get; set; } [Column(Name = "DptLeadId")] public int DepartmentLeadId { get; set; } }
- 20. Example public T ExecuteStoredProcedure(string dataBase, object parameters) { var connection = new SqlConnection(ConfigurationManager.ConnectionStrings[dataBase].ConnectionString); SqlMapper.SetTypeMap(typeof(T), new ColumnAttributeTypeMapper<T>()); var result = connection.QueryAsync<T>(ProcedureName, param: parameters, commandType: CommandType.StoredProcedure).Result.FirstOrDefault(); return result; } public List<T> ExecuteStoredProcedureWithListResult(string dataBase, object parameters) { var connection = new SqlConnection(ConfigurationManager.ConnectionStrings[dataBase].ConnectionString); SqlMapper.SetTypeMap(typeof(T), new ColumnAttributeTypeMapper<T>()); var result = connection.QueryAsync<T>(ProcedureName, param: parameters, commandType: CommandType.StoredProcedure).Result.ToList(); return result; }