Description
Lightweight data access components for generating SQL commands by dynamic queries, mapping results to strongly typed POCO models or dictionaries, CRUD operations. - DbCommandBuilder for generating SELECT, INSERT, UPDATE and DELETE commands - DbDataAdapter for CRUD-operations - best for schema-less DB access, dynamic DB queries, user-defined filters, reporting applications - fills the gap between minimalistic .NET Core (corefx) System.Data and EF Core - parser for compact string query representation (relex) - can be used with any existing ADO.NET data provider (MsSql, PostgreSql, Sqlite, MySql etc) - supports both full .NET Framework 4.x and .NET Core (netstandard1.5)
NReco.Data alternatives and similar packages
Based on the "ORM" category.
Alternatively, view NReco.Data alternatives based on common mentions on social networks and blogs.
-
TypeORM
Data-Mapper ORM for TypeScript and JavaScript (ES7, ES6, ES5). Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, WebSQL databases. Works in Node.js and Browser. -
Entity Framework
Object-relational mapper that enables .NET developers to work with relational data using domain-specific objects -
FreeSql
FreeSql is the ORM in .NetCore, .NetFramework, And Xamarin. It supports Mysql, Postgresql, SqlServer, Oracle, Sqlite, Odbc, 达梦, And MsAccess. -
Fluent NHibernate
Fluent, XML-less, compile safe, automated, convention-based mappings for NHibernate. -
LINQ to DB
The fastest LINQ database access library offering a simple, light, fast, and type-safe layer between your POCO objects and your database. -
Dapper Extensions
Small library that complements Dapper by adding basic CRUD operations (Get, Insert, Update, Delete) for your POCOs -
Entity Framework 6
Object-relational mapper that enables .NET developers to work with relational data using domain-specific objects -
NPoco
Simple microORM that maps the results of a query onto a POCO object. Based on Schotime's branch of PetaPoco -
SmartSql
SmartSql = MyBatis + Cache(Memory | Redis)+ ZooKeeper + R / W Splitting + Dynamic Repository .... -
SQLProvider
A general F# SQL database erasing type provider, supporting LINQ queries, schema exploration, individuals, CRUD operations and much more besides. -
MongoDB Repository pattern implementation
Repository abstraction layer on top of Official MongoDB C# driver -
DbExtensions
Data-access framework with a strong focus on query composition, granularity and code aesthetics. -
JsonFlatFileDataStore
Simple JSON flat file data store with support for typed and dynamic data. -
MicroLite ORM
MicroLite ORM is a micro Object Relational Mapper for the .NET framework. It is designed to be easy to use, extensible and testable. -
Linq.Expression.Optimizer
System.Linq.Expression expressions optimizer. -
EntityFramework.DatabaseMigrator
EntityFramework.DatabaseMigrator is a WinForms utility to help manage Entity Framework 6.0+ migrations. -
LLBLGen Pro
Entity Modeling solution for Entity Framework, NHibernate, Linq to SQL and its own ORM framework: LLBLGen Pro Runtime Framework. [$][Free Lite version] -
Entity Framework Core
Object-relational mapper that enables .NET developers to work with relational data using domain-specific objects
Get performance insights in less than 4 minutes
* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest. Visit our partner's website for more details.
Do you think we are missing an alternative of NReco.Data or a related project?
README
NReco.Data
Lightweight high-performance data access components for generating SQL commands, mapping results to strongly typed POCO models or dictionaries, schema-less CRUD-operations with RecordSet.
NuGet | Windows x64 | Ubuntu 14.04 |
---|---|---|
- very fast: NReco.Data shows almost the same performance as Dapper but offers more features
- abstract DB-independent Query structure: no need to compose raw SQL in the code + query can be constructed dynamically (at run-time)
- automated CRUD commands generation
- generate several SQL statements into one IDbCommand (batch inserts, updates, selects for multiple recordsets: DbBatchCommandBuilder)
- supports mapping to annotated POCO models (EF Core entity models), allows customized mapping of query result
- API for schema-less data access (dictionaries, RecordSet, DataTable)
- can handle results returned by stored procedure, including multiple record sets
- application-level data views (for complex SQL queries) that accessed like simple read-only tables (DbDataView)
- parser for compact string query representation: relex expressions
- can be used with any existing ADO.NET data provider (SQL Server, PostgreSql, Sqlite, MySql, Oracle etc)
- supports .NET Framework 4.5+, .NET Core 2.x / 3.x (netstandard2.0)
Quick reference
Class | Dependencies | Purpose |
---|---|---|
DbFactory |
incapsulates DB-specific functions and conventions | |
DbCommandBuilder |
IDbFactory | composes IDbCommand and SQL text for SELECT/UPDATE/DELETE/INSERT, handles app-level dataviews |
DbDataAdapter |
IDbCommandBuilder, IDbConnection | CRUD operations for model, dictionary, DataTable or RecordSet: Insert/Update/Delete/Select. Async versions are supported for all methods. |
Query |
Represents abstract query to database; used as parameter in DbCommandBuilder, DbDataAdapter | |
RelexParser |
Parsers query string expression (Relex) into Query structure | |
RecordSet |
RecordSet model represents in-memory data records, this is lightweight and efficient replacement for classic DataTable/DataRow | |
DataReaderResult |
IDataReader | reads data from any data reader implementation and efficiently maps it to models, dictionaries, DataTable or RecordSet |
NReco.Data documentation:
- Getting started and HowTos
- Full API Reference
- something is still not clear? Feel free to ask a question on StackOverflow
How to use
Generic implementation of DbFactory
can be used with any ADO.NET connector.
DbFactory initialization for SqlClient:
var dbFactory = new DbFactory(System.Data.SqlClient.SqlClientFactory.Instance) {
LastInsertIdSelectText = "SELECT @@IDENTITY" };
DbFactory initialization for Mysql:
var dbFactory = new DbFactory(MySql.Data.MySqlClient.MySqlClientFactory.Instance) {
LastInsertIdSelectText = "SELECT LAST_INSERT_ID()" };
DbFactory initialization for Postgresql:
var dbFactory = new DbFactory(Npgsql.NpgsqlFactory.Instance) {
LastInsertIdSelectText = "SELECT lastval()" };
DbFactory initialization for Sqlite:
var dbFactory = new DbFactory(Microsoft.Data.Sqlite.SqliteFactory.Instance) {
LastInsertIdSelectText = "SELECT last_insert_rowid()" };
DbCommandBuilder generates SQL commands by Query:
var dbCmdBuilder = new DbCommandBuilder(dbFactory);
var selectCmd = dbCmdBuilder.GetSelectCommand(
new Query("Employees", (QField)"BirthDate" > new QConst(new DateTime(1960,1,1)) ) );
var selectGroupByCmd = dbCmdBuilder.GetSelectCommand(
new Query("Employees").Select("company_id", new QAggregateField("avg_age", "AVG", "age") ) );
var insertCmd = dbCmdBuilder.GetInsertCommand(
"Employees", new { Name = "John Smith", BirthDate = new DateTime(1980,1,1) } );
var deleteCmd = dbCmdBuilder.GetDeleteCommand(
new Query("Employees", (QField)"Name" == (QConst)"John Smith" ) );
DbDataAdapter - provides simple API for CRUD-operations:
var dbConnection = dbFactory.CreateConnection();
dbConnection.ConnectionString = "<db_connection_string>";
var dbAdapter = new DbDataAdapter(dbConnection, dbCmdBuilder);
// map select results to POCO models
var employeeModelsList = dbAdapter.Select( new Query("Employees") ).ToList<Employee>();
// read select result to dictionary
var employeeDictionary = dbAdapter.Select(
new Query("Employees", (QField)"EmployeeID"==(QConst)newEmployee.EmployeeID ).Select("FirstName","LastName")
).ToDictionary();
// update by dictionary
dbAdapter.Update(
new Query("Employees", (QField)"EmployeeID"==(QConst)1001 ),
new Dictionary<string,object>() {
{"FirstName", "Bruce" },
{"LastName", "Wayne" }
});
// insert by model
dbAdapter.Insert( "Employees", new { FirstName = "John", LastName = "Smith" } );
RecordSet - efficient replacement for DataTable/DataRow with very similar API:
var rs = dbAdapter.Select(new Query("Employees")).ToRecordSet();
rs.SetPrimaryKey("EmployeeID");
foreach (var row in rs) {
Console.WriteLine("ID={0}", row["EmployeeID"]);
if ("Canada".Equals(row["Country"]))
row.Delete();
}
dbAdapter.Update(rs);
var rsReader = new RecordSetReader(rs); // DbDataReader for in-memory rows
Relex - compact relational query expressions:
var relex = @"Employees(BirthDate>""1960-01-01"":datetime)[Name,BirthDate]"
var relexParser = new NReco.Data.Relex.RelexParser();
Query q = relexParser.Parse(relex);
More examples
- Command Builder: illustrates SQL commands generation, command batching (inserts)
- Data Adapter: CRUD operations with dictionaries, POCO, RecordSet
- DataSet GenericDataAdapter: how to implement generic DataSet DataAdapter (Fill/Update) for any ADO.NET provider
- SQL logging: how to extend
DbFactory
and add wrapper forDbCommand
that logs SQL commands produced byDbDataAdapter
- DB WebApi: configures NReco.Data services in MVC Core app, simple REST API for database tables
- MVC Core CRUD: full-functional CRUD (list, add/edit forms) that uses NReco.Data as data layer in combination with EF Core
- DB Metadata: extract database metadata (list of tables, columns) with information_schema queries
- GraphQL API for SQL database: provides simple GraphQL API by existing database schema (simple queries only, no mutations yet)
Who is using this?
NReco.Data is in production use at SeekTable.com and PivotData microservice.
License
Copyright 2016-2020 Vitaliy Fedorchenko and contributors
Distributed under the MIT license
*Note that all licence references and agreements mentioned in the NReco.Data README section above
are relevant to that project's source code only.