How to mix executable and querieable SQL statements in Dapper - dapper

Question

I Dapper I can execute some SQL that does not give a response using Execute:
var sql = #"INSERT INTO Items (id, userId, name, description, isPublic) VALUES (#id, #userId, #name, #description, #isPublic)";
using (var connection = new SqlConnection(ConnectionString))
{
connection.Execute(sql, new
{
id = value.Id,
userId = value.UserId,
name = value.Name,
description = value.Description,
isPublic = value.IsPublic
});
}
I can query using Query:
var sql = #"SELECT * FROM Items WHERE id = #id";
using (var connection = new SqlConnection(ConnectionString))
{
var item = connection.Query<Item>(sql, new { id = id }).Single();
return item;
}
Using [QueryMultiple]() I can simultaneously send several queries:
var sql = #"SELECT * FROM Collections WHERE id = #collectionId
SELECT * FROM Items WHERE id = #itemId";
using (var connection = new SqlConnection(ConnectionString))
{
var multi = connection.QueryMultiple(sql, new { collectionId = collectionId, itemId = itemId });
//...
How would I execute and query in one go? I.e. how would I call this combination:
var sql = #"INSERT INTO Items (id, userId, name, description, isPublic) VALUES (#id, #userId, #name, #description, #isPublic)
SELECT * FROM Items WHERE id = #itemId";"

Answer 1

It's pretty strait forward:
[TestFixture]
public class DapperTests
{
private SqlConnection _sqlConnection;
[SetUp]
public void Setup()
{
_sqlConnection = new SqlConnection(#"Data Source=.\sqlexpress; Integrated Security=true; Initial Catalog=MyDb");
_sqlConnection.Open();
_sqlConnection.Execute(#"IF (NOT EXISTS (SELECT *
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = 'dbo'
AND TABLE_NAME = 'temp'))
BEGIN
create table temp
(
Id int IDENTITY(1,1),
Value varchar(10)
)
END");
}
[TearDown]
public void Teardown()
{
_sqlConnection.Close();
}
[Test]
public void Test_Basic_Insert_Select()
{
var result = _sqlConnection.Query<int>("SELECT #value as Id into #temp; select Id from #temp where Id = #value", new { value = 1 }).Single();
Assert.That(result, Is.EqualTo(1));
}
[Test]
public void Test_Basic_Insert_Select_QueryMultiple()
{
var result = _sqlConnection.QueryMultiple("insert into temp(Value) select #value; select 1 as foo; select 'bar' as bar", new { value = 1 });
var id = result.Read<int>().Single();
var bar = result.Read<string>().Single();
Assert.That(id, Is.EqualTo(1));
Assert.That(bar, Is.EqualTo("bar"));
}
[Test]
public void Test_Identity()
{
var result = _sqlConnection.Query<int>("insert into temp(Value) select #value ;select Id from temp where Id = (SELECT SCOPE_IDENTITY())", new { value = 1 });
Assert.That(result.Count(), Is.GreaterThan(0));
}
}