public void ItShouldBePossibleToDeleteWithASubQuery() { var stream = S.DeleteNode( S.From <Car>(), S.Where( S.BinExp( S.Col <Car>("DriverId"), BinaryOperation.In, S.SubExp( S.Select(S.Col <Person>("Id")), S.From <Person>(), S.Where(S.BinExp(S.Col <Person>("Age"), BinaryOperation.LessThan, S.Const(18))))))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That( result, Is.EqualTo( "DELETE FROM Car CarRef " + "WHERE CarRef.DriverId IN (" + "SELECT PersonRef.Id " + "FROM Person PersonRef " + "WHERE PersonRef.Age < 18" + ")")); }
public void ItShouldBePossibleToSelectFromACommonTableExpression() { var expr = S.SelectNode( S.With( S.TableDef <PersonLite>( S.Select(S.Col <Person>("Name"), S.Col <Person>("Age")), S.From <Person>(), S.Where(S.BinExp(S.Col <Person>("Age"), BinaryOperation.GreaterThan, S.Const(15))))), S.Select(S.Col <PersonLite>("Name")), S.From(new TableIdentifier <PersonLite>()), S.Where(S.BinExp(S.Col <PersonLite>("Age"), BinaryOperation.Equal, S.Const(42))) ); var result = SqlGen.SqlifyExpression(Dialects.AnsiSql.Dialect, expr); var expected = "WITH PersonLite AS (" + "SELECT PersonRef.Name, PersonRef.Age " + "FROM Person PersonRef " + "WHERE PersonRef.Age > 15" + ") " + "SELECT PersonLiteRef.Name " + "FROM PersonLite PersonLiteRef " + "WHERE PersonLiteRef.Age = 42"; Assert.That(result, Is.EqualTo(expected)); }
public void ItShouldHandleASimpleUnionAll() { var stream = AST.SqlExpression.NewSelect( AST.SelectExpression.NewPlain( AST.PlainSelectExpression.NewSet( S.UnionAll( S.PlainSelect( S.Select(S.Star <Person>()), S.From <Person>(), S.Where( S.BinExp(S.Col <Person>("Age"), AST.BinaryOperation.GreaterThan, S.Const(42)))), S.PlainSelect( S.Select(S.Star <Person>()), S.From <Person>(), S.Where( S.BinExp(S.Col <Person>("Name"), AST.BinaryOperation.Equal, S.Const("'Kalle'")))) )))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); var expected = "SELECT PersonRef.* FROM Person PersonRef WHERE PersonRef.Age > 42 " + "UNION ALL " + "SELECT PersonRef.* FROM Person PersonRef WHERE PersonRef.Name = 'Kalle'"; Assert.That(result, Is.EqualTo(expected)); }
public void ItShouldBePossibleToPutAWhereExpressionOnADeleteStatement() { var stream = S.DeleteNode( S.From <Person>(), S.Where(S.BinExp(S.Col <Person>("Age"), BinaryOperation.GreaterThan, S.Const(42)))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo(@"DELETE FROM Person PersonRef WHERE PersonRef.Age > 42")); }
public void ItShouldBePossibleToPerformAConditionalUpdate() { var stream = S.UpdateNode( S.UpdHead <Person>(S.Ust <Person>("Age", 42)), S.Where(S.BinExp(S.Col <Person>("Name"), BinaryOperation.Equal, S.Const("'Kalle'")))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo("UPDATE Person SET Age = 42 WHERE Name = 'Kalle'")); }
public void ItShouldBeAbleToParameterizeAQuery() { var stream = S.SelectNode( S.Select(S.Star<Person>()), S.From<Person>(), S.Where(S.BinExp(S.Col<Person>("Age"), BinaryOperation.GreaterThan, S.Param("age")))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo("SELECT PersonRef.* FROM Person PersonRef WHERE PersonRef.Age > @age")); }
public void ItCanSupportFlippingOrdersForInvertedComparisonWithNull() { var stream = S.SelectNode( S.Select(S.Star <Person>()), S.From <Person>(), S.Where( S.BinExp(S.Null(), BinaryOperation.NotEqual, S.Col <Person>("Age")))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo("SELECT PersonRef.* FROM Person PersonRef WHERE PersonRef.Age IS NOT NULL")); }
public void ItShouldBePossibleToSqlifyAWhere() { var stream = S.SelectNode( S.Select(S.Star <Person>()), S.From <Person>(), S.Where(S.BinExp(S.Col <Person>("Age"), BinaryOperation.GreaterThan, S.Const(42)))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo(@"SELECT PersonRef.* FROM Person PersonRef WHERE PersonRef.Age > 42")); }
public void ItShouldIncludeTheSchemaInTheGeneratedSql() { var stream = S.SelectNode( S.Select(S.Star <Employee>()), S.From <Employee>(), S.Where(S.BinExp(S.Col <Employee>("Salary"), BinaryOperation.GreaterThan, S.Const(25000)))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo(@"SELECT EmployeeRef.* FROM HumanResources.Employee EmployeeRef WHERE EmployeeRef.Salary > 25000")); }
public void ItShouldBePossibleToSelectFromSeveralCommonTableExpressions() { var oldies = Table <PersonLite> .WithTableAlias("Oldies"); var younglings = Table <PersonLite> .WithTableAlias("YoungOnes"); var expr = S.SelectNode( S.With( S.TableDef( younglings, S.Select(S.Col <Person>("Name"), S.Col <Person>("Age")), S.From <Person>(), S.Where(S.BinExp(S.Col <Person>("Age"), BinaryOperation.LessThanOrEqual, S.Const(15)))), S.TableDef( oldies, S.Select(S.Col <Person>("Name"), S.Col <Person>("Age")), S.From <Person>(), S.Where(S.BinExp(S.Col <Person>("Age"), BinaryOperation.GreaterThan, S.Const(40)))) ), S.Select(S.Col(oldies, "Name"), S.Col(younglings, "Name")), S.From( oldies, S.Join( oldies, younglings, Domain.AST.JoinType.InnerJoin, S.BinExp( S.BinExp(S.Col(oldies, "Age"), BinaryOperation.Subtract, S.Const(30)), BinaryOperation.Equal, S.Col(younglings, "Age")))) ); var result = SqlGen.SqlifyExpression(Dialects.AnsiSql.Dialect, expr); var expected = "WITH Oldies AS (" + "SELECT PersonRef.Name, PersonRef.Age " + "FROM Person PersonRef " + "WHERE PersonRef.Age > 40" + "), YoungOnes AS (" + "SELECT PersonRef.Name, PersonRef.Age " + "FROM Person PersonRef " + "WHERE PersonRef.Age <= 15" + ") " + "SELECT OldiesRef.Name, YoungOnesRef.Name " + "FROM Oldies OldiesRef " + "INNER JOIN YoungOnes YoungOnesRef ON OldiesRef.Age - 30 = YoungOnesRef.Age"; Assert.That(result, Is.EqualTo(expected)); }
public void ItShouldBePossibleToSqlifyAWhereWithAndOrsThatIsNotInBinaryExpressions() { var stream = S.SelectNode( S.Select(S.Star <Person>()), S.From <Person>(), S.Where( S.BinExp(S.Col <Person>("Age"), BinaryOperation.LessThan, S.Const(42)), S.And(S.BinExp(S.Col <Person>("Age"), BinaryOperation.GreaterThan, S.Const(12))), S.Or(S.BinExp(S.Col <Person>("Name"), BinaryOperation.Equal, S.Const("'Karl'"))))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo(@"SELECT PersonRef.* FROM Person PersonRef WHERE PersonRef.Age < 42 AND PersonRef.Age > 12 OR PersonRef.Name = 'Karl'")); }
public void ItShouldBePossibleToHaveMultipleConditionsOnTheUpdate() { var stream = S.UpdateNode( S.UpdHead <Person>(S.Ust <Person>("Age", 42)), S.Where( S.BinExp(S.Col <Person>("Name"), BinaryOperation.Equal, S.Const("'Kalle'")), S.Or(S.BinExp(S.Col <Person>("Name"), BinaryOperation.Equal, S.Const("'Pelle'"))), S.And(S.BinExp(S.Col <Person>("Age"), BinaryOperation.LessThan, S.Const(18))))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo("UPDATE Person SET Age = 42 WHERE Name = 'Kalle' OR Name = 'Pelle' AND Age < 18")); }
public void ItShouldBePossibleToSqlifyAQueryWithAnInSubExpression() { var stream = S.SelectNode( S.Select(S.Star <Person>()), S.From <Person>(), S.Where( S.BinExp( S.Col <Person>("Id"), BinaryOperation.In, S.SubExp( S.Select(S.Col <Car>("DriverId")), S.From <Car>())))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo(@"SELECT PersonRef.* FROM Person PersonRef WHERE PersonRef.Id IN (SELECT CarRef.DriverId FROM Car CarRef)")); }
public void ItCanGenerateSqlForToLower() { var stream = S.SelectNode( S.Select(S.Func(AST.FunctionType.Lower, new[] { S.Col <Person>("Name") })), S.From <Person>(), S.Where( S.BinExp( S.Func(AST.FunctionType.Lower, new[] { S.Col <Person>("Name") }), BinaryOperation.Equal, S.Const("'kalle'")) )); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); string expected = "SELECT LOWER(PersonRef.Name) FROM Person PersonRef WHERE LOWER(PersonRef.Name) = 'kalle'"; Assert.That(result, Is.EqualTo(expected)); }
public void ItShouldBePossibleToUseAndAndOrOnAWhereStatementOnADeleteStatement() { var stream = S.DeleteNode( S.From <Person>(), S.Where( S.BinExp(S.Col <Person>("Age"), BinaryOperation.GreaterThan, S.Const(42)), S.And(S.BinExp(S.Col <Person>("Name"), BinaryOperation.Equal, S.Const("'Kalle'"))), S.Or(S.BinExp(S.Col <Person>("Name"), BinaryOperation.Equal, S.Const("'Henrik'"))))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo( "DELETE FROM Person PersonRef " + "WHERE PersonRef.Age > 42 " + "AND PersonRef.Name = 'Kalle' " + "OR PersonRef.Name = 'Henrik'")); }
public void ItShouldBePossibleToSqlifyACompareAgainstASubExpressionInAWhereExpression() { var stream = S.SelectNode( S.Select(S.Star <Person>()), S.From <Person>(), S.Where( S.BinExp( S.Col <Person>("Age"), BinaryOperation.GreaterThan, S.SubExp( S.Select(S.Col <Car>("Age")), S.From <Car>(), S.Where(S.BinExp(S.Col <Car>("Id"), BinaryOperation.Equal, S.Const(42))))))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo(@"SELECT PersonRef.* FROM Person PersonRef WHERE PersonRef.Age > (SELECT CarRef.Age FROM Car CarRef WHERE CarRef.Id = 42)")); }
public void ItShouldBePossibleToDoPagingWithACommonTableExpression() { // To be honest, this case should be covered by the other test cases so this test case is a bit redundant. // However, using common table expressions for paging is a quite common technique and it's good to know for sure that it works as expected, so // let's do some bad practice testing and test something that's already covered by other tests! var expr = S.SelectNode( S.With( S.TableDef <PersonLitePagingResult>( S.Select( S.Col <Person>("Name"), S.Col <Person>("Age"), S.AliasedCol( "RowNumber", AggregateType.RowNumber, S.Null(), orderBy: new[] { S.OrderClause(S.Col <Person>("Age"), AST.Direction.Ascending) })), S.From <Person>()) ), S.Select(S.Col <PersonLitePagingResult>("Name"), S.Col <PersonLitePagingResult>("Age")), S.From <PersonLitePagingResult>(), S.Where( S.BinExp( S.BinExp(S.Col <PersonLitePagingResult>("RowNumber"), BinaryOperation.GreaterThanOrEqual, S.Const(10)), BinaryOperation.And, S.BinExp(S.Col <PersonLitePagingResult>("RowNumber"), BinaryOperation.LessThan, S.Const(20)) ))); var result = SqlGen.SqlifyExpression(Dialects.AnsiSql.Dialect, expr); var expected = "WITH PersonLitePagingResult AS (" + "SELECT PersonRef.Name, PersonRef.Age, ROW_NUMBER() OVER (ORDER BY PersonRef.Age ASC) AS RowNumber " + "FROM Person PersonRef" + ") " + "SELECT PersonLitePagingResultRef.Name, PersonLitePagingResultRef.Age " + "FROM PersonLitePagingResult PersonLitePagingResultRef " + "WHERE PersonLitePagingResultRef.RowNumber >= 10 AND PersonLitePagingResultRef.RowNumber < 20"; Assert.That(result, Is.EqualTo(expected)); }
public void ItShouldBePossibleToDoARecursiveCommonTableExpression() { var stream = S.SelectNode( S.With( S.TableDef <RecursivePerson>( S.UnionAll( S.PlainSelect( S.Select( S.AliasedCol(S.Const(0), "Level"), S.Col <Person>("Name"), S.Col <Person>("ParentId")), S.From <Person>(), S.Where( S.BinExp(S.Col <Person>("Name"), BinaryOperation.Equal, S.Const("'Kalle'")))), S.PlainSelect( S.Select( S.AliasedCol( S.BinExp(S.Col <RecursivePerson>("Level"), BinaryOperation.Add, S.Const(1)), "Level"), S.Col <Person>("Name"), S.Col <Person>("ParentId")), S.From <Person>( S.Join <Person, RecursivePerson>( AST.JoinType.InnerJoin, S.BinExp(S.Col <Person>("Id"), BinaryOperation.Equal, S.Col <RecursivePerson>("ParentId")))))))), S.PlainSelect( S.Select(S.Star <RecursivePerson>()), S.From <RecursivePerson>())); var result = SqlGen.SqlifyExpression(Dialects.AnsiSql.Dialect, stream); var expected = "WITH RecursivePerson AS (" + "SELECT 0 AS Level, PersonRef.Name, PersonRef.ParentId FROM Person PersonRef WHERE PersonRef.Name = 'Kalle' " + "UNION ALL " + "SELECT RecursivePersonRef.Level + 1 AS Level, PersonRef.Name, PersonRef.ParentId " + "FROM Person PersonRef " + "INNER JOIN RecursivePerson RecursivePersonRef ON PersonRef.Id = RecursivePersonRef.ParentId" + ") " + "SELECT RecursivePersonRef.* FROM RecursivePerson RecursivePersonRef"; Assert.That(result, Is.EqualTo(expected)); }
public void ItShouldAddParensWhenNecessaryToPreserveAndOrPredecence() { var stream = S.SelectNode( S.Select(S.Star <Person>()), S.From <Person>(), S.Where( S.BinExp( S.BinExp( S.BinExp(S.Col <Person>("Age"), BinaryOperation.LessThan, S.Const(10)), BinaryOperation.Or, S.BinExp(S.Col <Person>("Name"), BinaryOperation.Equal, S.Const("'Karl'")) ), BinaryOperation.And, S.BinExp(S.Col <Person>("Age"), BinaryOperation.GreaterThan, S.Const(42)) ))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo(@"SELECT PersonRef.* FROM Person PersonRef WHERE (PersonRef.Age < 10 OR PersonRef.Name = 'Karl') AND PersonRef.Age > 42")); }
public void ItCanGenerateSqlForAConcatFunctionCall() { var stream = S.SelectNode( S.Select(S.Func(AST.FunctionType.Concat, new[] { S.Col <Person>("Name"), S.Col <Car>("Brand"), S.Col <Person>("Name") })), S.From <Person>( S.Join <Person, Car>( AST.JoinType.InnerJoin, S.BinExp(S.Col <Person>("Id"), BinaryOperation.Equal, S.Col <Car>("DriverId")))), S.Where( S.BinExp( S.Func(AST.FunctionType.Concat, new[] { S.Col <Person>("Name"), S.Col <Car>("Brand"), }), BinaryOperation.Equal, S.Const("'kallesaab'")))); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); string expected = "SELECT CONCAT(PersonRef.Name, CarRef.Brand, PersonRef.Name) " + "FROM Person PersonRef " + "INNER JOIN Car CarRef ON PersonRef.Id = CarRef.DriverId " + "WHERE CONCAT(PersonRef.Name, CarRef.Brand) = 'kallesaab'"; Assert.That(result, Is.EqualTo(expected)); }
public void ItShouldBePossibleToUseTheParameterInMoreComplexExpressions() { var stream = S.SelectNode( S.Select(S.Star<Person>()), S.From<Person>(), S.Where( S.BinExp( S.BinExp(S.Col<Person>("Age"), BinaryOperation.GreaterThan, S.Param("age")), BinaryOperation.And, S.BinExp(S.Param("age"), BinaryOperation.LessThan, S.Const(90)) ), S.Or(S.BinExp(S.Col<Person>("Age"), BinaryOperation.LessThan, S.Param("age"))) )); var result = SqlGen.SqlifyExpression(AnsiSql.Dialect, stream); Assert.That(result, Is.EqualTo( @"SELECT PersonRef.* " + "FROM Person PersonRef " + "WHERE PersonRef.Age > @age "+ "AND @age < 90 " + "OR PersonRef.Age < @age")); }