public void SelectStatement() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); OrderQuery orders = new OrderQuery("o"); OrderItemQuery details = new OrderItemQuery("oi"); // A SubQuery in the Select clause must return a single value. switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SqlServerCeProvider": case "EntitySpaces.SqlServerCe4Provider": Assert.Ignore("Not supported."); break; default: orders .Select(orders.OrderID, orders.OrderDate,details.Select(details.UnitPrice.Max()) .Where(orders.OrderID == details.OrderID).As("MaxUnitPrice")) .OrderBy(orders.OrderID.Ascending); break; } Assert.IsTrue(collection.Load(orders)); Assert.AreEqual(8, collection.Count); Assert.AreEqual(3m, collection[0].GetColumn("MaxUnitPrice")); }
public void SelectAllPlusSubQuery() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); OrderQuery orders = new OrderQuery("o"); OrderItemQuery details = new OrderItemQuery("oi"); switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SqlServerCeProvider": case "EntitySpaces.SqlServerCe4Provider": Assert.Ignore("Not supported."); break; default: orders.Select ( orders, details.Select( details.UnitPrice.Max()) .Where(orders.OrderID == details.OrderID).As("MaxUnitPrice") ); orders.OrderBy(orders.OrderID.Ascending); break; } Assert.IsTrue(collection.Load(orders)); Assert.AreEqual(8, collection.Count); Assert.AreEqual(3m, collection[0].GetColumn("MaxUnitPrice")); string all = collection.Query.es.LastQuery.Substring(7, 3); Assert.AreEqual("o.*", all); }
public void Correlated() { OrderItemCollection collection = new OrderItemCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); OrderItemQuery oiq = new OrderItemQuery("oi"); ProductQuery pq = new ProductQuery("p"); // oiq.ProductID in the inner Select is pulled from // the outer Select, making a correlated SubQuery. oiq.Select( oiq.OrderID, (oiq.Quantity * oiq.UnitPrice).Sum().As("Total") ); oiq.Where(oiq.ProductID .In( pq.Select(pq.ProductID) .Where(oiq.ProductID == pq.ProductID) ) ); oiq.GroupBy(oiq.OrderID); Assert.IsTrue(collection.Load(oiq)); Assert.AreEqual(5, collection.Count); }
public void SimpleJoinOn() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.MSAccessProvider": Assert.Ignore("SubQuery inside an ON clause not Supported"); break; default: // Query for the Join OrderItemQuery oiq = new OrderItemQuery("oi"); // SubQuery of OrderItems with a discount OrderItemQuery oisq = new OrderItemQuery("ois"); oisq.es.Distinct = true; oisq.Select(oisq.Discount); oisq.Where(oisq.Discount > 0); // Orders with discounted items OrderQuery oq = new OrderQuery("o"); oq.Select(oq.OrderID, oiq.Discount); oq.InnerJoin(oiq).On(oq.OrderID == oiq.OrderID & oiq.Discount.In(oisq)); Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(2, collection.Count); break; } }
public void FromClauseUsingInstance() { OrderCollection collection = new OrderCollection(); collection.es.Connection.Name = "ForeignKeyTest"; // Select an arbitrary number of rows from // any starting row. int startRow = 4; int numberOfRows = 7; // OrderItem SubQuery 1 // Get all rows through start + number, ascending OrderItemQuery oisq = new OrderItemQuery("ois"); oisq.es.Top = startRow + numberOfRows - 1; oisq.Select(oisq.OrderID, oisq.ProductID, oisq.Quantity); oisq.OrderBy(oisq.OrderID.Ascending, oisq.ProductID.Ascending); // OrderItem SubQuery 2 // Get just the number of rows, descending OrderItemQuery oisq2 = new OrderItemQuery("ois2"); oisq2.es.Top = numberOfRows; oisq2.From(oisq).As("sub1"); switch (collection.es.Connection.ProviderSignature.DataProviderName) { //case "EntitySpaces.SqlServerCeProvider": // Assert.Ignore("Not supported."); // break; case "EntitySpaces.NpgsqlProvider": case "EntitySpaces.Npgsql2Provider": oisq2.OrderBy("<sub1.\"OrderID\">", esOrderByDirection.Descending); oisq2.OrderBy("<sub1.\"ProductID\">", esOrderByDirection.Descending); break; case "EntitySpaces.OracleClientProvider": Assert.Ignore("Not supported."); break; default: oisq2.OrderBy("<sub1.OrderID>", esOrderByDirection.Descending); oisq2.OrderBy("<sub1.ProductID>", esOrderByDirection.Descending); break; } // Put it back in ascending order OrderQuery oq = new OrderQuery("o"); oq.From(oisq2).As("sub2"); switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.NpgsqlProvider": case "EntitySpaces.Npgsql2Provider": oq.OrderBy("<sub2.\"OrderID\">", esOrderByDirection.Ascending); oq.OrderBy("<sub2.\"ProductID\">", esOrderByDirection.Ascending); break; default: oq.OrderBy("<sub2.OrderID>", esOrderByDirection.Ascending); oq.OrderBy("<sub2.ProductID>", esOrderByDirection.Ascending); break; } Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(7, collection.Count); Assert.AreEqual(10, collection[0].GetColumn("Quantity")); }
public void FromClauseWithAlias() { OrderCollection collection = new OrderCollection(); collection.es.Connection.Name = "ForeignKeyTest"; OrderQuery oq = new OrderQuery("o"); OrderItemQuery oiq = new OrderItemQuery("oi"); // Calculate total price per order switch (collection.es.Connection.ProviderSignature.DataProviderName) { //case "EntitySpaces.SqlServerCeProvider": // Assert.Ignore("Not supported."); // break; case "EntitySpaces.NpgsqlProvider": case "EntitySpaces.Npgsql2Provider": case "EntitySpaces.OracleClientProvider": oq.Select(oq.CustID, oq.OrderDate, "<sub.\"OrderTotal\">"); break; default: oq.Select(oq.CustID, oq.OrderDate, "<sub.OrderTotal>"); break; } oq.From ( oiq.Select(oiq.OrderID, (oiq.UnitPrice * oiq.Quantity).Sum().As("OrderTotal")) .GroupBy(oiq.OrderID) ).As("sub"); oq.InnerJoin(oq).On(oq.OrderID == oiq.OrderID); oq.OrderBy(oq.OrderID.Ascending); Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(5, collection.Count); Assert.AreEqual(13.11m, collection[0].GetColumn("OrderTotal")); }
public void FromClause() { OrderCollection collection = new OrderCollection(); collection.es.Connection.Name = "ForeignKeyTest"; switch (collection.es.Connection.ProviderSignature.DataProviderName) { //case "EntitySpaces.SqlServerCeProvider": // Assert.Ignore("Not supported."); // break; default: OrderQuery oq = new OrderQuery("o"); OrderItemQuery oiq = new OrderItemQuery("oi"); // The inner Select contains an aggregate, // which requires a GroupBy for each non-aggregate in the Select. // The outer Select includes the aggregate from the inner Select, // plus columns where no GroupBy was desired. oq.Select(oq.CustID, oq.OrderDate, oiq.UnitPrice); oq.From ( oiq.Select(oiq.OrderID, oiq.UnitPrice.Sum()).GroupBy(oiq.OrderID) ).As("sub"); oq.InnerJoin(oq).On(oq.OrderID == oiq.OrderID); oq.OrderBy(oq.OrderID.Ascending); Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(5, collection.Count); Decimal up = Convert.ToDecimal(collection[0].GetColumn("UnitPrice")); Assert.AreEqual(5.11m, Math.Round(up, 2)); break; } }
public void OneWhereSubtract() { OrderItemCollection collection = new OrderItemCollection(); collection.es.Connection.Name = "ForeignKeyTest"; OrderItemQuery oiq = new OrderItemQuery("oiq"); oiq.Select(oiq.OrderID, oiq.ProductID, (oiq.UnitPrice - oiq.Discount).As("SomeDecimal")); oiq.Where(oiq.UnitPrice - oiq.Discount < .2); oiq.OrderBy(oiq.OrderID, esOrderByDirection.Ascending); oiq.OrderBy(oiq.ProductID, esOrderByDirection.Ascending); Assert.IsTrue(collection.Load(oiq)); decimal someDec = Convert.ToDecimal(collection[0].GetColumn("SomeDecimal")); Assert.AreEqual(Convert.ToDecimal("0.10"), Math.Round(someDec, 2)); }
public void OneModLiteral() { OrderItemCollection collection = new OrderItemCollection(); collection.es.Connection.Name = "ForeignKeyTest"; switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.MSAccessProvider": Assert.Ignore("Not supported"); break; default: OrderItemQuery oiq = new OrderItemQuery("oiq"); oiq.Select(oiq.OrderID, oiq.ProductID, (oiq.Quantity % 2).As("SomeInteger")); oiq.OrderBy(oiq.OrderID, esOrderByDirection.Ascending); oiq.OrderBy(oiq.ProductID, esOrderByDirection.Ascending); Assert.IsTrue(collection.Load(oiq)); decimal someInt = Convert.ToInt32(collection[0].GetColumn("SomeInteger")); Assert.AreEqual(1, someInt); break; } }
public void SingleUnionWithSubSelect() { OrderCollection coll = new OrderCollection(); coll.es.Connection.Name = "ForeignKeyTest"; switch (coll.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SqlServerCeProvider": case "EntitySpaces.SqlServerCe4Provider": Assert.Ignore("Scalar SubSelects are not supported in SqlCe."); break; default: OrderQuery oq1 = new OrderQuery("o1"); OrderItemQuery oiq1 = new OrderItemQuery("oi1"); oq1.Select ( oq1.OrderID, oq1.OrderDate, oiq1.Select( oiq1.UnitPrice.Max()) .Where(oq1.OrderID == oiq1.OrderID).As("MaxUnitPrice") ); oq1.Where(oq1.OrderDate.Between(Convert.ToDateTime("2005-01-01"), Convert.ToDateTime("2005-12-31"))); OrderQuery oq2 = new OrderQuery("o2"); OrderItemQuery oiq2 = new OrderItemQuery("oi2"); oq2.Select ( oq2.OrderID, oq2.OrderDate, oiq2.Select( oiq2.UnitPrice.Max()) .Where(oq2.OrderID == oiq2.OrderID).As("MaxUnitPrice") ); oq2.Where(oq2.OrderDate.Between(Convert.ToDateTime("2004-01-01"), Convert.ToDateTime("2004-12-31"))); oq1.Union(oq2); oq1.OrderBy(oq1.OrderID.Ascending); //string lq = cq1.Parse(); Assert.IsTrue(coll.Load(oq1)); Assert.AreEqual(6, coll.Count); Assert.AreEqual(3m, coll[0].GetColumn("MaxUnitPrice")); break; } }
public void HavingWithSimpleExpression() { OrderItemCollection coll = new OrderItemCollection(); coll.es.Connection.Name = "ForeignKeyTest"; OrderItemQuery q = new OrderItemQuery(); //q.es2.Connection.Name = "ForeignKeyTest"; q.Select(q.OrderID, q.Quantity.Sum().As("TotalQty")); q.Where(q.Discount.IsNull()); q.GroupBy(q.OrderID); switch (coll.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SqlServerCeProvider": case "EntitySpaces.SqlServerCe4Provider": case "EntitySpaces.VistaDBProvider": case "EntitySpaces.VistaDB4Provider": q.Having(q.Quantity.Sum() > 100); q.OrderBy("<TotalQty>", esOrderByDirection.Descending); break; case "EntitySpaces.SQLiteProvider": q.Having((q.Quantity * 1).Sum() > 100); q.OrderBy(q.Quantity.Sum().Descending); break; default: q.Having(q.Quantity.Sum() > 100); q.OrderBy(q.Quantity.Sum().Descending); break; } Assert.IsTrue(coll.Load(q), "Load"); Assert.AreEqual(3, coll.Count, "Count"); int qty = Convert.ToInt32(coll[0].GetColumn("TotalQty")); Assert.AreEqual(240, qty, "GetColumn"); }
public void HavingWithComplexExpression() { OrderItemCollection coll = new OrderItemCollection(); coll.es.Connection.Name = "ForeignKeyTest"; OrderItemQuery q = new OrderItemQuery(); q.Select(q.OrderID, (q.Quantity * q.UnitPrice).Sum().As("TotalPrice")); q.Where(q.Discount.IsNull()); q.GroupBy(q.OrderID); q.Having((q.Quantity * q.UnitPrice).Sum() > 500); switch (coll.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SqlServerCeProvider": case "EntitySpaces.SqlServerCe4Provider": case "EntitySpaces.VistaDBProvider": case "EntitySpaces.VistaDB4Provider": q.OrderBy("<TotalPrice>", esOrderByDirection.Descending); break; default: q.OrderBy((q.Quantity * q.UnitPrice).Sum().Descending); break; } Assert.IsTrue(coll.Load(q), "Load"); Assert.AreEqual(2, coll.Count, "Count"); decimal price = Convert.ToDecimal(coll[0].GetColumn("TotalPrice")); Assert.AreEqual(1940.0M, price, "GetColumn"); }