❤️ 关注 Furion 微信公众号有惊喜哦!
🫠 遇到问题
问题反馈
到 Furion 开源仓库反馈
成为赞助商
支持 Furion 的开源事业
Skip to main content

9.16 Sql 操作

📝 模块更新日志
  • 问题修复

    •   使用达梦数据库执行 sql 不能自动修复命令参数前缀 4.8.7.18 ⏱️2023.03.21 #I6OK4T
温馨提示

推荐使用 《9.18 Sql 高级代理》代替本章节功能。Sql 高级代理 能够提供更容易且更易维护的方式。

例子说明

本章节例子均以 SqlServer 数据库写的例子,命令参数统一用 @ 符号,但不同数据库的参数前缀有所不同,如:sql server 采用 @,Oracle/DM 采用 :,my sql 采用 ?。

9.16.1 关于 Sql​

Furion 框架提供非常多且灵活的 sql 操作方法,且性能不输于 dapper,同时逼近 ADO.NET 原生操作。

9.16.2 懒人无敌 Sql 🐮​

9.16.2.1 返回 DataTable​

// ==== 同步操作 ====

// 示例一
var dataTable = "select * from person".SqlQuery();

// 示例二
var dataTable = "select top 10 * from person where id > @id".SqlQuery(new {id = 10});

// 示例三
var dataTable = "select Id, Name, Age from person where name like @name".SqlQuery(new Dictionary<string,object>{ {"name", "%Furion%"} });

// 示例四
var dataTable = "select * from person where name=@name limit 1,10".SqlQuery(new []{ new MySqlParameter("name","Furion") });

// 示例五
var dataTable = "select * from person where id>@id and name like @name".SqlQuery(new YourModel { Id = 1, Name = "%Furion%" });

// 示例六
var dataTable = "exec PROC_GetPerson @id".SqlQuery(new {id = 10});

// 示例七
var dataTable = "select * from FN_GetPersons(@id)".SqlQuery(new {id = 10});

// 示例八
var dataTable = @"
select * from person p
left join personDetail pd on p.Id == pd.pid
where p.Id > @id;".SqlQuery(new {id = 10});

// ==== 异步操作 ====

// 示例一
var dataTable = await "select * from person".SqlQueryAsync();

// 示例二
var dataTable = await "select top 10 * from person where id > @id".SqlQueryAsync(new {id = 10});

// 示例三
var dataTable = await "select Id, Name, Age from person where name like @name".SqlQueryAsync(new Dictionary<string,object>{ {"name", "%Furion%"} });

// 示例四
var dataTable = await "select * from person where name=@name limit 1,10".SqlQueryAsync(new []{ new MySqlParameter("name","Furion") });

// 示例五
var dataTable = await "select * from person where id>@id and name like @name".SqlQueryAsync(new YourModel { Id = 1, Name = "%Furion%" });

// 示例六
var dataTable = await "exec PROC_GetPerson @id".SqlQueryAsync(new {id = 10});

// 示例七
var dataTable = await "select * from FN_GetPersons(@id)".SqlQueryAsync(new {id = 10});

// 示例八
var dataTable = await @"
select * from person p
left join personDetail pd on p.Id == pd.pid
where p.Id > @id;".SqlQueryAsync(new {id = 10});

9.16.2.2 返回 List<T>​

// ==== 同步操作 ====

// 示例一
var persons = "select * from person".SqlQuery<Person>();

// 示例二
var persons = "select top 10 * from person where id > @id".SqlQuery<Person>(new {id = 10});

// 示例三
var persons = "select Id, Name, Age from person where name like @name".SqlQuery<Person>(new Dictionary<string,object>{ {"name", "%Furion%"} });

// 示例四
var persons = "select * from person where name=@name limit 1,10".SqlQuery<Person>(new []{ new MySqlParameter("name","Furion") });

// 示例五
var persons = "select * from person where id>@id and name like @name".SqlQuery<Person>(new YourModel { Id = 1, Name = "%Furion%" });

// 示例六
var persons = "exec PROC_GetPerson @id".SqlQuery<Person>(new {id = 10});

// 示例七
var persons = "select * from FN_GetPersons(@id)".SqlQuery<Person>(new {id = 10});

// 示例八
var persons = @"
select * from person p
left join personDetail pd on p.Id == pd.pid
where p.Id > @id;".SqlQuery<Person>(new {id = 10});

// ==== 异步操作 ====

// 示例一
var persons = await "select * from person".SqlQueryAsync<Person>();

// 示例二
var persons = await "select top 10 * from person where id > @id".SqlQueryAsync<Person>(new {id = 10});

// 示例三
var persons = await "select Id, Name, Age from person where name like @name".SqlQueryAsync<Person>(new Dictionary<string,object>{ {"name", "%Furion%"} });

// 示例四
var persons = await "select * from person where name=@name limit 1,10".SqlQueryAsync<Person>(new []{ new MySqlParameter("name","Furion") });

// 示例五
var persons = await "select * from person where id>@id and name like @name".SqlQueryAsync<Person>(new YourModel { Id = 1, Name = "%Furion%" });

// 示例六
var persons = await "exec PROC_GetPerson @id".SqlQueryAsync<Person>(new {id = 10});

// 示例七
var persons = await "select * from FN_GetPersons(@id)".SqlQueryAsync<Person>(new {id = 10});

// 示例八
var persons = await @"
select * from person p
left join personDetail pd on p.Id == pd.pid
where p.Id > @id;".SqlQueryAsync<Person>(new {id = 10});

9.16.2.3 返回 DataSet​

// ==== 同步操作 ====

// 示例一
var dataSet = @"
select * from person;
select * from student;".SqlQueries();

// 示例二
var dataSet = @"
select * from person where Id > @id;
select * from student where Name like @name;".SqlQueries(new {id = 1, name = "%furion%"});

// 示例三
var dataSet = @"
select * from person;
exec PROC_GetStudents(@id);
select 'Furion';
select * from FN_GetPerson(@id);".SqlQueries(new {id = 1});

// ==== 异步操作 ====

// 示例一
var dataSet = await @"
select * from person;
select * from student;".SqlQueriesAsync();

// 示例二
var dataSet = await @"
select * from person where Id > @id;
select * from student where Name like @name;".SqlQueriesAsync(new {id = 1, name = "%furion%"});

// 示例三
var dataSet = await @"
select * from person;
exec PROC_GetStudents(@id);
select 'Furion';
select * from FN_GetPerson(@id);".SqlQueriesAsync(new {id = 1});

9.16.2.4 返回 Tuple<T1,...T8>​

// ==== 同步操作 ====

// 示例一
var (persons, students) = @"
select * from person;
select * from student;".SqlQueries<Person,Student>();

// 示例二
var (persons, students) = @"
select * from person where Id > @id;
select * from student where Name like @name;".SqlQueries<Person,Student>(new {id = 1, name = "%furion%"});

// 示例三
var (persons, students, string, PersonDto) = @"
select * from person;
exec PROC_GetStudents(@id);
select 'Furion';
select * from FN_GetPerson(@id);".SqlQueries<Person, Student, string, PersonDto>(new {id = 1});

// ==== 异步操作 ====

// 示例一
var (persons, students) = await @"
select * from person;
select * from student;".SqlQueriesAsync<Person,Student>();

// 示例二
var (persons, students) = await @"
select * from person where Id > @id;
select * from student where Name like @name;".SqlQueriesAsync<Person,Student>(new {id = 1, name = "%furion%"});

// 示例三
var (persons, students, string, PersonDto) = await @"
select * from person;
exec PROC_GetStudents(@id);
select 'Furion';
select * from FN_GetPerson(@id);".SqlQueriesAsync<Person, Student, string, PersonDto>(new {id = 1});

9.16.2.5 返回 单行单列​

// ==== 同步操作 ====

// 示例一
var value = "select Name from person where id = @id".SqlScalar(new {id = 1});

// 示例二
var value = "select Name from person where id = @id".SqlScalar<string>(new {id = 1});

// 示例三
var value = "select Age from person where id = @id".SqlScalar<int>(new {id = 1});

// ==== 异步操作 ====

// 示例一
var value = await "select Name from person where id = @id".SqlScalarAsync(new {id = 1});

// 示例二
var value = await "select Name from person where id = @id".SqlScalarAsync<string>(new {id = 1});

// 示例三
var value = await "select Age from person where id = @id".SqlScalarAsync<int>(new {id = 1});

9.16.2.6 返回 受影响行数​

// ==== 同步操作 ====

// 示例一
var rowEffects = "insert into person(Name,Age,Address) values(@name,@age,@address)".SqlNonQuery(person);

// 示例二
var rowEffects = @"
insert into person(Name,Age,Address) values(@name,@age,@address);
insert into person(Name,Age,Address) values(@name,@age,@address);".SqlNonQuery(persons);

// 示例三
var rowEffects = "update person set name=@name where id=@id".SqlNonQuery(new {id=1, name="百小僧"});

// 示例四
var rowEffects = "delete from person where @id > 10".SqlNonQuery(new {id=1});

// ==== 异步操作 ====

// 示例一
var rowEffects = await "insert into person(Name,Age,Address) values(@name,@age,@address)".SqlNonQueryAsync(person);

// 示例二
var rowEffects = @"
insert into person(Name,Age,Address) values(@name,@age,@address);
insert into person(Name,Age,Address) values(@name,@age,@address);".SqlNonQueryAsync(persons);

// 示例三
var rowEffects = await "update person set name=@name where id=@id".SqlNonQueryAsync(new {id=1, name="百小僧"});

// 示例四
var rowEffects = await "delete from person where @id > 10".SqlNonQueryAsync(new {id=1});

9.16.3 懒人无敌 存储过程 🐮​

9.16.3.1 返回 DataTable​

// ==== 同步操作 ====

// 示例一
var dataTable = "PROC_Name".SqlProcedureQuery();

// 示例二
var dataTable = "PROC_Name".SqlProcedureQuery(new {id = 1});

// 示例三
var dataTable = "PROC_Name".SqlProcedureQuery(new {id = 1, age = 27});

// ==== 异步操作 ====

// 示例一
var dataTable = await "PROC_Name".SqlProcedureQueryAsync();

// 示例二
var dataTable = await "PROC_Name".SqlProcedureQueryAsync(new {id = 1});

// 示例三
var dataTable = await "PROC_Name".SqlProcedureQueryAsync(new {id = 1, age = 27});

9.16.3.2 返回 List<T>​

// ==== 同步操作 ====

// 示例一
var persons = "PROC_Name".SqlProcedureQuery<Person>();

// 示例二
var persons = "PROC_Name".SqlProcedureQuery<Person>(new {id = 1});

// 示例三
var persons = "PROC_Name".SqlProcedureQuery<Person>(new {id = 1, age = 27});

// ==== 异步操作 ====

// 示例一
var persons = await "PROC_Name".SqlProcedureQueryAsync<Person>();

// 示例二
var persons = await "PROC_Name".SqlProcedureQueryAsync<Person>(new {id = 1});

// 示例三
var persons = await "PROC_Name".SqlProcedureQueryAsync<Person>(new {id = 1, age = 27});

9.16.3.3 返回 DataSet​

// ==== 同步操作 ====

// 示例一
var dataSet = "PROC_Name".SqlProcedureQueries();

// 示例二
var dataSet = "PROC_Name".SqlProcedureQueries(new {id = 1});

// 示例三
var dataSet = "PROC_Name".SqlProcedureQueries(new {id = 1, age = 27});

// ==== 异步操作 ====

// 示例一
var dataSet = await "PROC_Name".SqlProcedureQueriesAsync();

// 示例二
var dataSet = await "PROC_Name".SqlProcedureQueriesAsync(new {id = 1});

// 示例三
var dataSet = await "PROC_Name".SqlProcedureQueriesAsync(new {id = 1, age = 27});

9.16.3.4 返回 Tuple<T1,...T8>​

// ==== 同步操作 ====

// 示例一
var persons = "PROC_Name".SqlProcedureQueries<Person>();

// 示例二
var (persons,students) = "PROC_Name".SqlProcedureQueries<Person,Student>(new {id = 1});

// 示例三
var (persons,students,string) = "PROC_Name".SqlProcedureQueries<Person,Student,string>(new {id = 1, age = 27});

// 示例四
var (persons,students,personDetail,string) = "PROC_Name".SqlProcedureQueries<Person,Student,PersonDetail,string>(new {id = 1, age = 27});

// ==== 异步操作 ====

// 示例一
var persons = await "PROC_Name".SqlProcedureQueriesAsync<Person>();

// 示例二
var (persons,students) = await "PROC_Name".SqlProcedureQueriesAsync<Person,Student>(new {id = 1});

// 示例三
var (persons,students,string) = await "PROC_Name".SqlProcedureQueriesAsync<Person,Student,string>(new {id = 1, age = 27});

// 示例四
var (persons,students,personDetail,string) = await "PROC_Name".SqlProcedureQueriesAsync<Person,Student,PersonDetail,string>(new {id = 1, age = 27});

9.16.3.5 返回 单行单列​

// ==== 同步操作 ====

// 示例一
var value = "PROC_Name".SqlProcedureScalar(new {id = 1});

// 示例二
var value = "PROC_Name".SqlProcedureScalar<string>(new {id = 1, name = "新生帝", address ="广东省中山市"});

// 示例三
var value = "PROC_Name".SqlProcedureScalar<int>(new {id = 1, address ="广东省中山市"});

// ==== 异步操作 ====

// 示例一
var value = await "PROC_Name".SqlProcedureScalarAsync(new {id = 1});

// 示例二
var value = await "PROC_Name".SqlProcedureScalarAsync<string>(new {id = 1, name = "新生帝", address ="广东省中山市"});

// 示例三
var value = await "PROC_Name".SqlProcedureScalarAsync<int>(new {id = 1, address ="广东省中山市"});

9.16.3.6 返回 受影响行数​

// ==== 同步操作 ====

// 示例一
var rowEffects = "PROC_Name".SqlProcedureNonQuery(person);

// 示例二
var rowEffects = "PROC_Name".SqlProcedureNonQuery(new {id = 1, name = "新生帝", address ="广东省中山市"});

// 示例三
var rowEffects = "PROC_Name".SqlProcedureNonQuery(new {id=1, name="百小僧"});

// 示例四
var rowEffects = "PROC_Name".SqlProcedureNonQuery(new {id=1});

// ==== 异步操作 ====

// 示例一
var rowEffects = await "PROC_Name".SqlProcedureNonQueryAsync(person);

// 示例二
var rowEffects = await "PROC_Name".SqlProcedureNonQueryAsync(new {id = 1, name = "新生帝", address ="广东省中山市"});

// 示例三
var rowEffects = await "PROC_Name".SqlProcedureNonQueryAsync(new {id=1, name="百小僧"});

// 示例四
var rowEffects = await "PROC_Name".SqlProcedureNonQueryAsync(new {id=1});

9.16.3.7 带 OUTPUT/RETURN 返回​

CREATE PROC PROC_Output
@Id INT, // 输入参数
@Name NVARCHAR(32) OUTPUT, // 输出参数,还带长度
@Age INT OUTPUT // 输出参数
AS
BEGIN
SET @Name = 'Furion Output';

// 输出结果集
SELECT *
FROM dbo.Test
WHERE Id > @Id;

// 输出结果集
SELECT TOP 10
*
FROM dbo.Test;

SET @Age = 27;

// 带 RETURN 返回
RETURN 10;
END;
using Furion.DatabaseAccessor;
using System.Data;

namespace Furion.Application
{
public class ProcOutputModel
{
public int Id { get; set; } // 输入参数

[DbParameter(ParameterDirection.Output, Size = 32)]
public string Name { get; set; } // 输出参数

[DbParameter(ParameterDirection.Output)]
public int Age { get; set; } // 输出参数

[DbParameter(ParameterDirection.ReturnValue)]
public int ReturnValue { get; set; } // 返回值
}
}
// ==== 同步操作 ====

// 示例一
ProcedureOutputResult result = "PROC_Name".SqlProcedureOutput(new ProcOutputModel{ Id=1});

// 示例二
ProcedureOutputResult result = "PROC_Name".SqlProcedureOutput(new ProcOutputModel{ Id=1});

// 示例三
ProcedureOutputResult<(List<Person>, List<Student>)> result = "PROC_Name".SqlProcedureOutput<(List<Person>, List<Student>)>(new ProcOutputModel{ Id=1});

// ==== 异步操作 ====
// 示例一
ProcedureOutputResult result = await "PROC_Name".SqlProcedureOutputAsync(new ProcOutputModel{ Id=1});

// 示例二
ProcedureOutputResult result = await "PROC_Name".SqlProcedureOutputAsync(new ProcOutputModel{ Id=1});

// 示例三
ProcedureOutputResult<(List<Person>, List<Student>)> result = await "PROC_Name".SqlProcedureOutputAsync<(List<Person>, List<Student>)>(new ProcOutputModel{ Id=1});

9.16.4 懒人无敌 函数 🐮​

9.16.4.1 标量函数​

// ==== 同步操作 ====

// 示例一
var value = "FN_Name".SqlFunctionScalar();

// 示例二
var value = "FN_Name".SqlFunctionScalar(new {id = 1});

// 示例三
var value = "FN_Name".SqlFunctionScalar<string>();

// 示例四
var value = "FN_Name".SqlFunctionScalar<int>(new {id = 1});

// ==== 异步操作 ====

// 示例一
var value = await "FN_Name".SqlFunctionScalarAsync();

// 示例二
var value = await "FN_Name".SqlFunctionScalarAsync(new {id = 1});

// 示例三
var value = await "FN_Name".SqlFunctionScalarAsync<string>();

// 示例四
var value = await "FN_Name".SqlFunctionScalarAsync<int>(new {id = 1});

9.16.4.2 表值函数​

// ==== 同步操作 ====

// 示例一
var dataTable = "FN_Name".SqlFunctionQuery();

// 示例二
var dataTable = "FN_Name".SqlFunctionQuery(new {id = 1});

// 示例三
var persons = "FN_Name".SqlFunctionQuery<Person>();

// 示例四
var persons = "FN_Name".SqlFunctionQuery<Person>(new {id = 1});

// ==== 异步操作 ====

// 示例一
var dataTable = await "FN_Name".SqlFunctionQueryAsync();

// 示例二
var dataTable = await "FN_Name".SqlFunctionQueryAsync(new {id = 1});

// 示例三
var persons = await "FN_Name".SqlFunctionQueryAsync<Person>();

// 示例四
var persons = await "FN_Name".SqlFunctionQueryAsync<Person>(new {id = 1});

9.16.5 设置超时时间​

var data = "select * from table".SetCommandTimeout(100).SqlQuery(); // 单位秒

9.16.6 ISqlRepository 操作​

ISqlRepository 仓储是专门处理 Sql 操作的,无需实体方式,所有接口和 懒人无敌 方式一样:

// 示例一
var dataTable = sqlRepository.SqlQuery("select * from person");

// 示例二
var dataTable = sqlRepository.SqlQuery("select * from person where id > @id", new { id = 10});

// 示例四
var persons = sqlRepository.SqlQuery<Person>("select * from person");

// 示例五
var persons = sqlRepository.SqlQuery<Person>("select * from person where id > @id", new { id = 10});

// 不再举例子。。。
补充说明

不管是哪种方式操作 Sql ,方法名参数都是一致的,如:

  • SqlQuery
  • SqlQueryAsync
  • SqlQueries
  • SqlQueriesAsync
  • SqlNonQuery
  • SqlNonQueryAsync
  • SqlScalar
  • SqlScalarAsync
  • SqlProcedureQuery
  • SqlProcedureQueryAsync
  • SqlProcedureQueries
  • SqlProcedureQueriesAsync
  • SqlProcedureScalar
  • SqlProcedureScalarAsync
  • SqlProcedureNonQuery
  • SqlProcedureNonQueryAsync
  • SqlProcedureOutput
  • SqlProcedureOutputAsync
  • SqlFunctionScalar
  • SqlFunctionScalarAsync
  • SqlFunctionQuery
  • SqlFunctionQuery

9.16.7 IRepository 操作​

IRepository 也能操作 sql,调用方法也是和上面一致的,如:

var dataTable = repository.Sql().SqlQuery("select * from person");
特别说明

由于篇幅有限,不再列举所有例子。

9.16.8 IRepository<TEntity> 操作​

IRepository<TEntity> 也能操作 sql,调用方法也是和上面一致的,如:

var dataTable = personRepository.SqlQuery("select * from person");
特别说明

由于篇幅有限,不再列举所有例子。

9.16.9 关于 Sql 参数​

所有 sql、存储过程,函数 参数都支持四种方式:

  • DbParameter[]:数组类型
  • new {}:匿名类型
  • new Class{}:强类型类型(支持复杂存储过程参数)
  • Dictionary<string,object> 类型
小知识

建议除了复杂的存储过程(带 OUTPUT/RETURN)的以外,所有参数建议使用 new {} 匿名类型,如果需要动态参数,则可以使用 Dictionary<string,object> 类型。

参数大小写问题

由于不同数据库对查询参数大小写问题处理不一致,所以建议所有查询参数和参数名或属性名完全一致。

9.16.10 多数据库 Sql 操作 💯 💛​

Furion 框架拥有非常灵活的多数据库操作方式,只需通过多数据库上下文定位器即可动态切换数据库。

9.16.10.1 懒人无敌 🐮 方式​

var dataTable = "select * from person".Change<MySqlDbContextLocator>().SqlQuery();

var persons = "select * from person whre id > @id".Change<SqliteDbContextLocator>().SqlQuery<Person>();
补充说明

懒人方式 只需要通过 Change<TDbContextLocator> 方式即可动态切换数据库。

9.16.10.2 ISqlRepository 方式​

只需要通过 ISqlRepository<TDbContextLocator> 注入或通过 sqlRepository.Change<TDbContextLocator>() 切换。

9.16.10.3 IRepository 方式​

只需要通过 repository.Change<TDbContextLocator>() 获取即可。

9.16.10.4 IRepository<TEntity> 方式​

只需要通过 IRepository<TEntity, TDbContextLocator> 注入或通过 personRepository.Change<TEntity, TDbContextLocator>() 切换。

9.16.11 切换数据库​

在 Furion 框架中,不管是懒人模式还是仓储模式都是通过 .Change<TDbContextLocator> 方式切换数据库,如:

// 懒人模式
var data = "select * from table".Change<MySqlDbContextLocator>().SqlQuery<Data>();

// 仓储方式
var data = req.Change<MySqlDbContextLocator>().SqlQuery<Data>("select * from table");

9.16.12 多线程共享作用域​

默认情况下,所有的 字符串 和 实体 拓展都有自己独立维护的 ServiceProvider 作用域。

在 Web 请求中,默认是 HttpContext.RequestServices,但在 非 Web,如多线程操作,后台任务,事件总线等场景下会自动创建新的作用域,实际上这是非常不必要的内存开销。

这时,我们只需要通过 .SetXXXScoped(service) 共享当前服务提供器作用域即可,如:

Scoped.Create((fac, scope) => {
"select * from table".SetContextScoped(scope.ServiceProvider).SqlQuery();
});

9.16.13 静态 Default 方式构建​

SqlExecutePart.Default.SetSqlString("select * from person").SqlQuery();

9.16.14 反馈与建议​

与我们交流

给 Furion 提 Issue。