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.");
}
private void addJoinItem(SelectBuilder builder, Join join)
{
JoinStart start = join as JoinStart;
if (start == null)
{
builder.AddJoin(join);
return;
}
AliasedSource source = start.Source;
Table table = source.Source as Table;
if (table != null)
{
builder.AddTable(table, source.Alias);
return;
}
ISelectBuilder select = source.Source as SelectBuilder;
if (select != null)
{
builder.AddSelect(select, source.Alias);
return;
}
Function functionCall = source.Source as Function;
if (functionCall != null)
{
builder.AddFunction(functionCall, source.Alias);
return;
}
throw new InvalidOperationException();
}
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_ProjectionWithAlias()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(table.Column("Column"), "c");
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.Column AS c FROM Table";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
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 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_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_Any_ValueList()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(table.Column("Column"));
ValueList values = new ValueList(new NumericLiteral(1), new NumericLiteral(2), new NumericLiteral(3));
NotEqualToQuantifierFilter filter = new NotEqualToQuantifierFilter(table.Column("Column"), Quantifier.Any, values);
builder.AddWhere(filter);
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.Column FROM Table WHERE Table.Column <> ANY (1, 2, 3)";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_AliasTableUsingAs()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"), "t");
builder.AddProjection(new AllColumns());
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder, new CommandOptions() { AliasColumnSourcesUsingAs = true });
string expected = "SELECT * FROM Table AS t";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_WrappedFilters()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(table.Column("Column"));
FilterGroup group = new FilterGroup() { WrapInParentheses = true };
group.AddFilter(new EqualToFilter(new NumericLiteral(1), new NumericLiteral(1)));
group.AddFilter(new LikeFilter(table.Column("Column"), new StringLiteral("%ABC")));
builder.AddWhere(group);
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.Column FROM Table WHERE (1 = 1 AND Table.Column LIKE '%ABC')";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_TopWithTies()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.Top = new Top(new NumericLiteral(5)) { WithTies = true };
builder.AddProjection(table.Column("Column"));
builder.AddOrderBy(new OrderBy(table.Column("Column")));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT TOP 5 WITH TIES Table.Column FROM Table ORDER BY Table.Column";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_TopPercent()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.Top = new Top(new NumericLiteral(5)) { IsPercent = true };
builder.AddProjection(table.Column("Column"));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT TOP 5 PERCENT Table.Column FROM Table";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_RemoveSource()
{
var builder = new SelectBuilder();
var table1 = builder.AddTable(new Table("Table1"));
var table2 = builder.AddTable(new Table("Table2"));
builder.AddProjection(table1.Column("Column"));
var table2Column = builder.AddProjection(table2.Column("Column"));
builder.RemoveSource(table2);
builder.RemoveProjection(table2Column);
var formatter = new Formatter();
var commandText = formatter.GetCommandText(builder);
var expected = "SELECT Table1.Column FROM Table1";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
public void TestSelect_ProjectTableQualifiedStar()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(new AllColumns(table));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.* FROM Table";
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_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_DisjunctionFilter()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(table.Column("Column"));
FilterGroup orGroup = new FilterGroup(Conjunction.Or);
orGroup.AddFilter(new EqualToFilter(new NumericLiteral(1), new NumericLiteral(1)));
orGroup.AddFilter(new NullFilter(table.Column("Column")));
builder.AddWhere(orGroup);
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.Column FROM Table WHERE 1 = 1 OR Table.Column IS NULL";
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_ExistsFilter()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(table.Column("Column"));
SelectBuilder inner = new SelectBuilder();
inner.AddProjection(new NumericLiteral(1));
ExistsFilter filter = new ExistsFilter(inner);
builder.AddWhere(filter);
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.Column FROM Table WHERE EXISTS(SELECT 1)";
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_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_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_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_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.");
}
public void TestSelect_OrderNullsFirst()
{
SelectBuilder builder = new SelectBuilder();
AliasedSource table = builder.AddTable(new Table("Table"));
builder.AddProjection(table.Column("Column"));
builder.AddOrderBy(new OrderBy(table.Column("Column"), nullPlacement: NullPlacement.First));
Formatter formatter = new Formatter();
string commandText = formatter.GetCommandText(builder);
string expected = "SELECT Table.Column FROM Table ORDER BY Table.Column NULLS FIRST";
Assert.AreEqual(expected, commandText, "The wrong SQL was generated.");
}
