Document manual SQL

Working on #783

Author: praeclarum

README.md

@@ -187,6 +187,20 @@ var count = await db.ExecuteScalarAsync<int>("select count(*) from Stock");
 Console.WriteLine(string.Format("Found '{0}' stock items.", count));
 ```
 
+## Manual SQL
+
+**sqlite-net** is normally used as a light ORM with the methods `CreateTable` and `Table`. However, you can use it as just a convenient
+way to execute explicit queries.
+
+Here is an example of create a table, inserting into it, and
+querying it without using the ORM.
+
+```csharp
+db.Execute ("create table Stock(Symbol varchar(100) not null)");
+db.Execute ("insert into Stock(Symbol) values (?)", "MSFT");
+var stocks = db.Query<Stock> ("select * from Stock");
+```
+
 ## Using SQLCipher
 
 You can use an encrypted database by using the [sqlite-net-sqlcipher NuGet package](https://www.nuget.org/packages/sqlite-net-sqlcipher).

tests/ReadmeTest.cs

@@ -141,5 +141,18 @@ public void Cipher ()
 				postKeyAction: db => db.Execute ("PRAGMA kdf_iter = 128000;"));
 			var encryptedDb2 = new SQLiteAsyncConnection (options2);
 		}
+
+		[Test]
+		public void Manual()
+		{
+			var db = new SQLiteConnection (":memory:");
+
+			db.Execute ("create table Stock(Symbol varchar(100) not null)");
+			db.Execute ("insert into Stock(Symbol) values (?)", "MSFT");
+			var stocks = db.Query<Stock> ("select * from Stock");
+
+			Assert.AreEqual (1, stocks.Count);
+			Assert.AreEqual ("MSFT", stocks[0].Symbol);
+		}
 	}
 }