public void TestFilterGroup_Optimize_SimplifiesConditions()
{
FilterGroup topFilter = new FilterGroup(Conjunction.Or,
new FilterGroup(Conjunction.And,
new EqualToFilter(new Column("FirstName"), new StringLiteral("Albert")),
new FilterGroup(Conjunction.And,
new EqualToFilter(new Column("LastName"), new StringLiteral("Einstein")))),
new FilterGroup(Conjunction.And,
new EqualToFilter(new Column("FirstName"), new StringLiteral("Max")),
new FilterGroup(Conjunction.And,
new EqualToFilter(new Column("LastName"), new StringLiteral("Planck")))));
wrapInParentheses(topFilter, true);
SelectBuilder selectBuilder = new SelectBuilder();
selectBuilder.AddTable(new Table("Person"));
selectBuilder.AddProjection(new Column("FirstName"));
selectBuilder.AddProjection(new Column("LastName"));
selectBuilder.AddWhere(topFilter);
Formatter formatter = new Formatter();
string beforeActual = formatter.GetCommandText(selectBuilder);
const string beforeExpected = "SELECT FirstName, LastName FROM Person WHERE (((FirstName = 'Albert') AND ((LastName = 'Einstein'))) OR ((FirstName = 'Max') AND ((LastName = 'Planck'))))";
Assert.AreEqual(beforeExpected, beforeActual, "The initial query had an unexpected string representation.");
wrapInParentheses(topFilter, false);
topFilter.Optimize();
wrapInParentheses(topFilter, true);
string afterActual = formatter.GetCommandText(selectBuilder, new CommandOptions() { WrapFiltersInParentheses = true });
const string afterExpected = "SELECT FirstName, LastName FROM Person WHERE (((FirstName = 'Albert') AND (LastName = 'Einstein')) OR ((FirstName = 'Max') AND (LastName = 'Planck')))";
Assert.AreEqual(afterExpected, afterActual, "The optimized query had an unexpected string representation.");
}
public void TestDelete_AliasedTable_WithAs()
{
Table table = new Table("Table");
DeleteBuilder builder = new DeleteBuilder(table, "t");
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder, new CommandOptions() { AliasColumnSourcesUsingAs = true });
string expected = "DELETE FROM Table AS t";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestDelete_AliasedTable()
{
Table table = new Table("Table");
DeleteBuilder builder = new DeleteBuilder(table, "t");
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "DELETE FROM Table t";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestInsert_AliasedTable()
{
Table table = new Table("Table");
ValueList values = new ValueList();
InsertBuilder builder = new InsertBuilder(table, values, "t");
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "INSERT INTO Table t VALUES()";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestDelete_Where()
{
Table table = new Table("Table");
DeleteBuilder builder = new DeleteBuilder(table);
builder.AddWhere(new EqualToFilter(builder.Table.Column("Column"), new NumericLiteral(1)));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "DELETE FROM Table WHERE Column = 1";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public static void LogCommand(ICommand command, StringBuilder logBuilder, int indentLevel = 0)
{
var formatter = new Formatter();
var commandText = formatter.GetCommandText(command);
var indent = GetIndent(indentLevel);
logBuilder.AppendLine(string.Format("{0} {1}", indent, command.GetType().FullName.ToUpper()));
logBuilder.AppendLine(string.Format("{0} Command Text: {1}", indent, commandText));
if (command is SelectBuilder)
{
var selCommand = command as SelectBuilder;
logBuilder.AppendLine(string.Format("{0} PROJECTION ", indent));
LogProjection(selCommand.Projection, logBuilder, indentLevel);
logBuilder.AppendLine(string.Format("{0} FROM ", indent));
LogFrom(selCommand.From, logBuilder, indentLevel);
}
}
public void TestSelect_MultipleOrderByItems()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(table.Column("Column1"));
builder.AddProjection(table.Column("Column2"));
builder.AddOrderBy(new OrderBy(table.Column("Column1")));
builder.AddOrderBy(new OrderBy(table.Column("Column2")));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.Column1, Table.Column2 FROM Table ORDER BY Table.Column1, Table.Column2";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestInsert_AliasedTable_WithAsKeyword()
{
Table table = new Table("Table");
ValueList values = new ValueList();
InsertBuilder builder = new InsertBuilder(table, values, "t");
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder, new CommandOptions() { AliasColumnSourcesUsingAs = true });
string expected = "INSERT INTO Table AS t VALUES()";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_MultipleJoinItems()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table1 = builder.AddTable(new Table("Table1"));
AliasedSource table2 = builder.AddTable(new Table("Table2"));
builder.AddProjection(table1.Column("Column"));
builder.AddProjection(table2.Column("Column"));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table1.Column, Table2.Column FROM Table1, Table2";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_Newlines()
{
string commandText =
@"SELECT
*
FROM Table1
INNER JOIN Table2 ON Table1.Column = Table2.Column
WHERE Column3 = '123'";
CommandBuilder commandBuilder = new CommandBuilder();
SelectBuilder select = (SelectBuilder)commandBuilder.GetCommand(commandText);
Formatter formatter = new Formatter();
string actual = formatter.GetCommandText(select);
string expected = "SELECT * FROM Table1 INNER JOIN Table2 ON Table1.Column = Table2.Column WHERE Column3 = '123'";
Assert.AreEqual(expected, actual, "The SELECT statement was not updated as expected.");
}
public void TestSelect_FunctionWithPartitioning()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Employee"));
AliasedProjection employeeType = builder.AddProjection(table.Column("Type"), "Type");
Function function = new Function("COUNT", new NumericLiteral(1));
FunctionWindow window = new FunctionWindow();
window.AddPartition(employeeType);
function.FunctionWindow = window;
builder.AddProjection(function, "Count");
Formatter formatter = new Formatter();
string actual = formatter.GetCommandText(builder);
string expected = "SELECT Employee.Type AS Type, COUNT(1) OVER (PARTITION BY Employee.Type) AS Count FROM Employee";
Assert.AreEqual(expected, actual, "The wrong SQL was generated.");
}
public void TestSelect_AddFilter()
{
const string commandText = "SELECT * FROM Customer";
CommandBuilder commandBuilder = new CommandBuilder();
SelectBuilder select = (SelectBuilder)commandBuilder.GetCommand(commandText);
Column customerId = select.Sources["Customer"].Column("CustomerId");
customerId.Qualify = false;
Placeholder parameter = new Placeholder("@customerId");
select.AddWhere(new EqualToFilter(customerId, parameter));
Formatter formatter = new Formatter();
string actual = formatter.GetCommandText(select);
string expected = "SELECT * FROM Customer WHERE CustomerId = @customerId";
Assert.AreEqual(expected, actual, "The SELECT statement was not updated as expected.");
}
public void TestSelect_ExtraWhitespace()
{
string commandText = " SELECT * FROM Customer ";
CommandBuilder commandBuilder = new CommandBuilder();
SelectBuilder select = (SelectBuilder)commandBuilder.GetCommand(commandText);
Formatter formatter = new Formatter();
string actual = formatter.GetCommandText(select);
string expected = "SELECT * FROM Customer";
Assert.AreEqual(expected, actual, "The SELECT statement was not updated as expected.");
}
public void TestSelect_LessThanEqualTo()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(table.Column("Column"));
builder.AddWhere(new LessThanEqualToFilter(table.Column("Column"), new NumericLiteral(1)));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.Column FROM Table WHERE Table.Column <= 1";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_LikeFilter_Negated()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(table.Column("Column"));
builder.AddWhere(new LikeFilter(table.Column("Column"), new StringLiteral("%Bob%")) { Not = true });
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.Column FROM Table WHERE Table.Column NOT LIKE '%Bob%'";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_FunctionWithOrderingWindow()
{
SelectBuilder innerBuilder = new SelectBuilder();
AliasedSource table = innerBuilder.AddTable(new Table("Table"));
Column column1 = table.Column("Column1");
Column column2 = table.Column("Column2");
Column column3 = table.Column("Column3");
innerBuilder.AddProjection(column1, "c1");
Function function = new Function("ROW_NUMBER");
FunctionWindow window = new FunctionWindow();
window.AddOrderBy(new OrderBy(column2));
window.AddOrderBy(new OrderBy(column3));
function.FunctionWindow = window;
innerBuilder.AddProjection(function, "rn");
SelectBuilder builder = new SelectBuilder();
AliasedSource inner = builder.AddSelect(innerBuilder, "inner");
builder.AddProjection(inner.Column("c1"));
builder.AddWhere(new BetweenFilter(inner.Column("rn"), new NumericLiteral(11), new NumericLiteral(20)));
Formatter formatter = new Formatter();
string actual = formatter.GetCommandText(builder);
string expected = "SELECT inner.c1 FROM (SELECT Table.Column1 AS c1, ROW_NUMBER() OVER (ORDER BY Table.Column2, Table.Column3) AS rn FROM Table) inner WHERE inner.rn BETWEEN 11 AND 20";
Assert.AreEqual(expected, actual, "The wrong SQL was generated.");
}
public void TestSelect_LeftOuterJoin()
{
SelectBuilder builder = new SelectBuilder();
Join join = Join.From(new Table("Table1"))
.LeftOuterJoin(new Table("Table2"))
.On(j => new EqualToFilter(j.Sources["Table1"].Column("Column"), j.Sources["Table2"].Column("Column")));
builder.AddJoin(join);
builder.AddProjection(new AllColumns());
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT * FROM Table1 LEFT OUTER JOIN Table2 ON Table1.Column = Table2.Column";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_InFilter_Negated()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(table.Column("Column"));
builder.AddWhere(new InFilter(table.Column("Column"), new ValueList(new NumericLiteral(1), new NumericLiteral(2), new NumericLiteral(3))) { Not = true });
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.Column FROM Table WHERE Table.Column NOT IN (1, 2, 3)";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_InFilter_FunctionSource()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(table.Column("Column"));
builder.AddWhere(new InFilter(table.Column("Column"), new Function("GetData")));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.Column FROM Table WHERE Table.Column IN GetData()";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_GroupBy()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(new Function("COUNT", new NumericLiteral(1)));
builder.AddGroupBy(table.Column("Column"));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT COUNT(1) FROM Table GROUP BY Table.Column";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_MultipleProjections()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(new NumericLiteral(1));
builder.AddProjection(new StringLiteral("Hello"));
builder.AddProjection(new NullLiteral());
builder.AddProjection(new Function("IsNull", table.Column("Column"), new NumericLiteral(123)));
builder.AddProjection(table.Column("Column"));
SelectBuilder inner = new SelectBuilder();
inner.AddProjection(new NumericLiteral(1234));
builder.AddProjection(inner);
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT 1, 'Hello', NULL, IsNull(Table.Column, 123), Table.Column, (SELECT 1234) FROM Table";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_FromFunction()
{
SelectBuilder builder = new SelectBuilder();
builder.AddFunction(new Function("GetData"), "F");
builder.AddProjection(builder.Sources["F"].Column("Column"));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT F.Column FROM GetData() F";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
private void assertCanReproduce(string commandText, CommandBuilderOptions options = null)
{
CommandBuilder builder = new CommandBuilder();
ICommand command = builder.GetCommand(commandText, options);
Formatter formatter = new Formatter();
string actual = formatter.GetCommandText(command);
Assert.AreEqual(commandText, actual, "The command builder did not generate the original command text.");
}
public void TestSelect_MatchCase_MultipleCases()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource source = builder.AddTable(new Table("Table"));
Column column = source.Column("Column");
MatchCase options = new MatchCase(column);
options.AddBranch(new NumericLiteral(0), new StringLiteral("Sunday"));
options.AddBranch(new NumericLiteral(1), new StringLiteral("Monday"));
options.AddBranch(new NumericLiteral(2), new StringLiteral("Tuesday"));
options.AddBranch(new NumericLiteral(3), new StringLiteral("Wednesday"));
options.AddBranch(new NumericLiteral(4), new StringLiteral("Thursday"));
options.AddBranch(new NumericLiteral(5), new StringLiteral("Friday"));
options.AddBranch(new NumericLiteral(6), new StringLiteral("Saturday"));
builder.AddProjection(options);
Formatter formatter = new Formatter();
string actual = formatter.GetCommandText(builder);
string expected = "SELECT CASE Table.Column WHEN 0 THEN 'Sunday' WHEN 1 THEN 'Monday' WHEN 2 THEN 'Tuesday' WHEN 3 THEN 'Wednesday' WHEN 4 THEN 'Thursday' WHEN 5 THEN 'Friday' WHEN 6 THEN 'Saturday' END FROM Table";
Assert.AreEqual(expected, actual, "The wrong SQL was generated.");
}
public void TestSelect_ComplexCommand()
{
string commandText =
@"SELECT
r.RouteId,
r.RouteNumber,
o.CustomerId,
o.CustomerKey AS [Outlet#],
o.Name AS CustomerName,
vm.VendingMachineId,
vm.AssetNumber AS [Equipment#],
m.ModelType AS Model,
rc.FillFrequency,
rc.EffectiveDate AS SettlementDate,
p.ProductLookupId,
p.ProductSKU AS ProductCode,
rcvc.FillLevel AS ProductCapacity,
st.QuantityDelivered AS FillUnits
FROM Company b
INNER JOIN Route r ON b.CompanyId = r.CompanyId
INNER JOIN RouteSchedule rs ON r.RouteId = rs.RouteId
INNER JOIN RouteCard rc ON rs.RouteScheduleId = rc.RouteScheduleId
INNER JOIN
(
SELECT
rc.RouteCardId,
rcvc.ProductLookupId,
SUM(rcvc.FillLevel) AS FillLevel
FROM RouteSchedule rs
INNER JOIN RouteCard rc ON rs.RouteScheduleId = rc.RouteScheduleId
INNER JOIN RouteCardVendColumn rcvc ON rc.RouteCardId = rcvc.RouteCardId
WHERE rs.RouteId IN (1, 2, 3) AND rc.EffectiveDate BETWEEN @startDate AND @stopDate
GROUP BY rc.RouteCardId, rcvc.ProductLookupId
) as rcvc ON rc.RouteCardId = rcvc.RouteCardId
INNER JOIN ProductLookup p ON rcvc.ProductLookupId = p.ProductLookupId
INNER JOIN VendingMachine vm ON rc.VendingMachineId = vm.VendingMachineId
INNER JOIN MachineTypeLookup m ON vm.MachineTypeLookupId = m.MachineTypeLookupId
INNER JOIN Customer o ON vm.CustomerId = o.CustomerId
INNER JOIN ServiceTransaction svc ON
(rc.VendingMachineId = svc.VendingMachineId AND rc.EffectiveDate = svc.ServiceTransactionDate)
INNER JOIN SettlementTransactionSKU st ON
(svc.ServiceTransactionId = st.ServiceTransactionId AND p.ProductLookupId = st.ProductLookupId)
WHERE rc.EffectiveDate BETWEEN @startDate AND @endDate AND r.RouteId IN (1, 2, 3)
ORDER BY b.CompanyId, r.RouteId, vm.VendingMachineId, p.ProductLookupId, rc.EffectiveDate DESC";
CommandBuilder commandBuilder = new CommandBuilder();
SelectBuilder select = (SelectBuilder)commandBuilder.GetCommand(commandText);
select.AddWhere(new EqualToFilter(new NumericLiteral(1), new NumericLiteral(1)));
Formatter formatter = new Formatter();
string actual = formatter.GetCommandText(select);
string expected = "SELECT"
+ " r.RouteId,"
+ " r.RouteNumber,"
+ " o.CustomerId,"
+ " o.CustomerKey AS [Outlet#],"
+ " o.Name AS CustomerName,"
+ " vm.VendingMachineId,"
+ " vm.AssetNumber AS [Equipment#],"
+ " m.ModelType AS Model,"
+ " rc.FillFrequency,"
+ " rc.EffectiveDate AS SettlementDate,"
+ " p.ProductLookupId,"
+ " p.ProductSKU AS ProductCode,"
+ " rcvc.FillLevel AS ProductCapacity,"
+ " st.QuantityDelivered AS FillUnits"
+ " FROM Company b"
+ " INNER JOIN Route r ON b.CompanyId = r.CompanyId"
+ " INNER JOIN RouteSchedule rs ON r.RouteId = rs.RouteId"
+ " INNER JOIN RouteCard rc ON rs.RouteScheduleId = rc.RouteScheduleId"
+ " INNER JOIN (SELECT rc.RouteCardId, rcvc.ProductLookupId, SUM(rcvc.FillLevel) AS FillLevel FROM RouteSchedule rs INNER JOIN RouteCard rc ON rs.RouteScheduleId = rc.RouteScheduleId INNER JOIN RouteCardVendColumn rcvc ON rc.RouteCardId = rcvc.RouteCardId WHERE rs.RouteId IN (1, 2, 3) AND rc.EffectiveDate BETWEEN @startDate AND @stopDate GROUP BY rc.RouteCardId, rcvc.ProductLookupId) rcvc ON rc.RouteCardId = rcvc.RouteCardId"
+ " INNER JOIN ProductLookup p ON rcvc.ProductLookupId = p.ProductLookupId"
+ " INNER JOIN VendingMachine vm ON rc.VendingMachineId = vm.VendingMachineId"
+ " INNER JOIN MachineTypeLookup m ON vm.MachineTypeLookupId = m.MachineTypeLookupId"
+ " INNER JOIN Customer o ON vm.CustomerId = o.CustomerId"
+ " INNER JOIN ServiceTransaction svc ON (rc.VendingMachineId = svc.VendingMachineId AND rc.EffectiveDate = svc.ServiceTransactionDate)"
+ " INNER JOIN SettlementTransactionSKU st ON (svc.ServiceTransactionId = st.ServiceTransactionId AND p.ProductLookupId = st.ProductLookupId)"
+ " WHERE rc.EffectiveDate BETWEEN @startDate AND @endDate AND r.RouteId IN (1, 2, 3) AND 1 = 1"
+ " ORDER BY b.CompanyId, r.RouteId, vm.VendingMachineId, p.ProductLookupId, rc.EffectiveDate DESC";
Assert.AreEqual(expected, actual, "The SELECT statement was not reproduced as expected.");
}
public void TestSelect_Minus()
{
SelectBuilder builder = new SelectBuilder();
builder.AddProjection(new NumericLiteral(1));
Minus union = new Minus(builder, builder);
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(union);
string expected = "SELECT 1 MINUS SELECT 1";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_FromSelect()
{
SelectBuilder builder = new SelectBuilder();
SelectBuilder inner = new SelectBuilder();
inner.AddProjection(new NumericLiteral(1), "Column");
builder.AddSelect(inner);
builder.AddProjection(new Column("Column"));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Column FROM (SELECT 1 AS Column)";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_Modulus()
{
SelectBuilder builder = new SelectBuilder();
builder.AddProjection(new Modulus(new NumericLiteral(1), new NumericLiteral(1)));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT (1 % 1)";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_MatchCase_Else()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource source = builder.AddTable(new Table("Table"));
Column column = source.Column("Column");
MatchCase options = new MatchCase(column);
options.AddBranch(new StringLiteral("Admin"), new StringLiteral("Administrator"));
options.Default = new StringLiteral("User");
builder.AddProjection(options);
Formatter formatter = new Formatter();
string actual = formatter.GetCommandText(builder);
string expected = "SELECT CASE Table.Column WHEN 'Admin' THEN 'Administrator' ELSE 'User' END FROM Table";
Assert.AreEqual(expected, actual, "The wrong SQL was generated.");
}
public void TestSelect_FunctionWithStartFraming()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource sale = builder.AddTable(new Table("sale"));
AliasedProjection productId = builder.AddProjection(sale.Column("prod_id"));
AliasedProjection monthNumber = builder.AddProjection(sale.Column("month_num"));
AliasedProjection sales = builder.AddProjection(sale.Column("sales"));
Function function = new Function("SUM", sales.ProjectionItem);
FunctionWindow window = new FunctionWindow();
window.AddPartition(productId);
window.AddOrderBy(new OrderBy(monthNumber));
window.Frame = new PrecedingOnlyWindowFrame(new PrecedingBoundFrame(12));
function.FunctionWindow = window;
builder.AddProjection(function);
Formatter formatter = new Formatter();
string actual = formatter.GetCommandText(builder);
string expected = "SELECT sale.prod_id, sale.month_num, sale.sales, SUM(sale.sales) OVER (PARTITION BY sale.prod_id ORDER BY sale.month_num ROWS 12 PRECEDING) FROM sale";
Assert.AreEqual(expected, actual, "The wrong SQL was generated.");
}
