diff --git a/exec/exec.go b/exec/exec.go
index c8447ff..ea77d56 100644
--- a/exec/exec.go
+++ b/exec/exec.go
@@ -25,13 +25,14 @@ func ExecuteDDL(conn *simpleorm.DBConnection, orm *simpleorm.ORM) {
 }
 
 type Exec[T any] interface {
-	Execute(conn *simpleorm.DBConnection) ([]T, error)
+	Execute(conn *simpleorm.DBConnection) error
 }
 
 type Select[T any] struct {
 	target    schema.Table
 	whereStmt string
 	args      []any
+	result    []T
 }
 
 func CreateSelect[T any](orm *simpleorm.ORM, whereStmt string, args ...any) (Select[T], error) {
@@ -43,10 +44,14 @@ func CreateSelect[T any](orm *simpleorm.ORM, whereStmt string, args ...any) (Sel
 	return Select[T]{target: *table, whereStmt: whereStmt, args: args}, nil
 }
 
-func (s Select[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
+func (s Select[T]) GetResult() []T {
+	return s.result
+}
+
+func (s Select[T]) Execute(conn *simpleorm.DBConnection) error {
 	dml, err := s.target.GetSelectDML()
 	if err != nil {
-		return []T{}, err
+		return err
 	}
 
 	if s.whereStmt != "" {
@@ -57,7 +62,7 @@ func (s Select[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
 
 	stmt, err := conn.Prepare(dml)
 	if err != nil {
-		return nil, err
+		return err
 	}
 	defer stmt.Close()
 
@@ -81,17 +86,15 @@ func (s Select[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
 	}
 
 	if err != nil {
-		return nil, err
+		return err
 	}
 
 	rowContainer := createSelectResultContainer(s.target)
 
-	var results []T
-
 	for rows.Next() {
 		err = rows.Scan(rowContainer...)
 		if err != nil {
-			return nil, err
+			return err
 		}
 
 		targetType := s.target.Type
@@ -106,10 +109,10 @@ func (s Select[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
 			targetField.Set(decoded)
 		}
 		parsedObj := reflect.Indirect(parsedResult).Interface().(T)
-		results = append(results, parsedObj)
+		s.result = append(s.result, parsedObj)
 	}
 
-	return results, nil
+	return nil
 }
 
 type Insert[T any] struct {
@@ -127,10 +130,10 @@ func NewInsert[T any](orm *simpleorm.ORM, toInsert ...T) (Insert[T], error) {
 	return Insert[T]{target: *table, toInsert: toInsert}, nil
 }
 
-func (ins Insert[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
+func (ins Insert[T]) Execute(conn *simpleorm.DBConnection) error {
 	dml, err := ins.target.GetInsertDML(len(ins.toInsert))
 	if err != nil {
-		return []T{}, err
+		return err
 	}
 
 	var params []any
@@ -148,7 +151,7 @@ func (ins Insert[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
 
 	stmt, err := conn.Prepare(dml)
 	if err != nil {
-		return []T{}, err
+		return err
 	}
 	defer stmt.Close()
 
@@ -158,9 +161,9 @@ func (ins Insert[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
 		rowsAffected, _ := result.RowsAffected()
 		log.LogInfo("Inserted %s row", rowsAffected)
 		ins.lastInsertId, _ = result.LastInsertId()
-		log.LogInfo("Last ID: %s", ins.lastInsertId)
+		log.LogInfo("Last inserted ID: %s", ins.lastInsertId)
 	}
-	return []T{}, nil
+	return nil
 }
 
 func (ins Insert[T]) LastInsertId() int64 {
@@ -181,17 +184,17 @@ func NewUpdate[T any](orm *simpleorm.ORM, toUpdate T) (Update[T], error) {
 	return Update[T]{target: *table, toUpdate: toUpdate}, nil
 }
 
-func (u Update[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
+func (u Update[T]) Execute(conn *simpleorm.DBConnection) error {
 	dml, err := u.target.GetUpdateDML()
 	if err != nil {
-		return []T{}, err
+		return err
 	}
 
 	params := prepareParams(u.toUpdate, u.target)
 
 	pkCols, err := getPk(u.toUpdate, u.target)
 	if err != nil {
-		return []T{}, err
+		return err
 	}
 	// Put the pks back at the end
 	for _, pk := range pkCols {
@@ -202,19 +205,19 @@ func (u Update[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
 
 	stmt, err := conn.Prepare(dml)
 	if err != nil {
-		return []T{}, err
+		return err
 	}
 	defer stmt.Close()
 
 	result, err := stmt.Exec(params...)
 	if err != nil {
-		return []T{}, err
+		return err
 	} else {
 		rowsAffected, _ := result.RowsAffected()
 		log.LogInfo("Updated %s row", rowsAffected)
 		result.LastInsertId()
 	}
-	return []T{u.toUpdate}, nil
+	return nil
 }
 
 type Delete[T any] struct {
@@ -222,7 +225,7 @@ type Delete[T any] struct {
 	toDelete []T
 }
 
-func NewDelete[T any](orm *simpleorm.ORM, toDelete []T) (Delete[T], error) {
+func NewDelete[T any](orm *simpleorm.ORM, toDelete ...T) (Delete[T], error) {
 	table, ok := orm.Cache().Get(reflect.TypeFor[T]().Name())
 	if !ok {
 		return Delete[T]{}, errors.New("Failed to get table from schema cache")
@@ -231,11 +234,11 @@ func NewDelete[T any](orm *simpleorm.ORM, toDelete []T) (Delete[T], error) {
 	return Delete[T]{target: *table, toDelete: toDelete}, nil
 }
 
-func (d Delete[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
+func (d Delete[T]) Execute(conn *simpleorm.DBConnection) error {
 	count := len(d.toDelete)
 	dml, err := d.target.GetDeleteDML(count)
 	if err != nil {
-		return []T{}, err
+		return err
 	}
 
 	var params []any
@@ -243,7 +246,7 @@ func (d Delete[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
 	for _, del := range d.toDelete {
 		pkCols, err := getPk(del, d.target)
 		if err != nil {
-			return []T{}, err
+			return err
 		}
 
 		for _, pk := range pkCols {
@@ -255,19 +258,19 @@ func (d Delete[T]) Execute(conn *simpleorm.DBConnection) ([]T, error) {
 
 	stmt, err := conn.Prepare(dml)
 	if err != nil {
-		return []T{}, err
+		return err
 	}
 	defer stmt.Close()
 
 	result, err := stmt.Exec(params...)
 	if err != nil {
-		return []T{}, err
+		return err
 	} else {
 		rowsAffected, _ := result.RowsAffected()
 		log.LogInfo("Deleted %s row", rowsAffected)
 	}
 
-	return d.toDelete, nil
+	return nil
 
 }
 
diff --git a/repository/repository.go b/repository/repository.go
index b567cd5..65c8d4d 100644
--- a/repository/repository.go
+++ b/repository/repository.go
@@ -31,11 +31,12 @@ func (r *Repository[T]) SelectAll() []*T {
 		return []*T{}
 	}
 
-	selecRes, err := selectExec.Execute(r.conn)
+	err = selectExec.Execute(r.conn)
 	if err != nil {
 		log.LogError("Failed to load projects: %s", err)
 		return []*T{}
 	}
+	selecRes := selectExec.GetResult()
 
 	res := make([]*T, 0, len(selecRes))
 	for i := range selecRes {
@@ -75,7 +76,8 @@ func (r *Repository[T]) SelectByPk(pks ...any) *T {
 		return nil
 	}
 
-	res, err := selectExec.Execute(r.conn)
+	err = selectExec.Execute(r.conn)
+	res := selectExec.GetResult()
 	if err != nil {
 		log.LogError("Failed to load entity: %s", err)
 		return nil
@@ -97,7 +99,7 @@ func (r *Repository[T]) Save(entity T) (*T, error) {
 			log.LogError("Failed to create insert execution: %s", err)
 			return nil, errors.New("")
 		}
-		if _, err := insertExec.Execute(r.conn); err != nil {
+		if err = insertExec.Execute(r.conn); err != nil {
 			log.LogError("Insert failed for entity: %s", entity)
 		}
 
@@ -111,7 +113,7 @@ func (r *Repository[T]) Save(entity T) (*T, error) {
 
 	}
 
-	_, err = updateExec.Execute(r.conn)
+	err = updateExec.Execute(r.conn)
 	if err != nil {
 		log.LogError("Update failed: %s", err)
 		return nil, errors.New("")
@@ -122,12 +124,12 @@ func (r *Repository[T]) Save(entity T) (*T, error) {
 }
 
 func (r *Repository[T]) Delete(entity T) {
-	deleteExec, err := exec.NewDelete[T](r.orm, []T{entity})
+	deleteExec, err := exec.NewDelete[T](r.orm, entity)
 	if err != nil {
 		log.LogError("Failed to create delete execution: %s", err)
 		return
 	}
-	_, err = deleteExec.Execute(r.conn)
+	err = deleteExec.Execute(r.conn)
 	if err != nil {
 		log.LogError("Delete failed: %s", err)
 		return
diff --git a/test/exec_test.go b/test/exec_test.go
index 99a9b04..14db5c0 100644
--- a/test/exec_test.go
+++ b/test/exec_test.go
@@ -36,14 +36,14 @@ func TestSelectEmpty(t *testing.T) {
 		return
 	}
 
-	res, err := selectExec.Execute(conn)
+	err = selectExec.Execute(conn)
 
 	if err != nil {
 		log.LogError("Select failure. %s", err)
 		t.Fail()
 		return
 	}
-	if len(res) > 0 {
+	if len(selectExec.GetResult()) > 0 {
 		log.LogError("Expected empty result.")
 		t.Fail()
 		return
@@ -61,7 +61,7 @@ func TestInsertAndSelectSingle(t *testing.T) {
 
 	testObj := Test{Int64Field: 54, IntField: 12, StringField: "asdf"}
 
-	insertExec, err := exec.NewInsert(orm, testObj)
+	insertExec, err := exec.NewInsert(orm, &testObj)
 	if err != nil {
 		log.LogError("TestInsertAndSelectSingle setup failed: %s", err)
 		t.Fail()
@@ -76,16 +76,18 @@ func TestInsertAndSelectSingle(t *testing.T) {
 	}
 
 	// WHEN
-	_, err = insertExec.Execute(conn)
+	err = insertExec.Execute(conn)
 	if err != nil {
 		log.LogError("TestInsertAndSelectSingle insert failed: %s", err)
 		t.Fail()
 		return
 	}
 
-	res, err := selectExec.Execute(conn)
+	err = selectExec.Execute(conn)
 
 	// THEN
+	res := selectExec.GetResult()
+
 	if err != nil {
 		log.LogError("TestInsertAndSelectSingle failure. %s", err)
 		t.Fail()
@@ -116,7 +118,7 @@ func TestInsertSelectWithCompositePk(t *testing.T) {
 
 	testObj := TestWithCompositePk{ID: 12, Name: "Test"}
 
-	insertExec, err := exec.NewInsert(orm, testObj)
+	insertExec, err := exec.NewInsert(orm, &testObj)
 	if err != nil {
 		log.LogError("TestInsertSelectWithCompositePk setup failed: %s", err)
 		t.Fail()
@@ -131,14 +133,15 @@ func TestInsertSelectWithCompositePk(t *testing.T) {
 	}
 
 	// WHEN
-	_, err = insertExec.Execute(conn)
+	err = insertExec.Execute(conn)
 	if err != nil {
 		log.LogError("TestInsertSelectWithCompositePk insert failed: %s", err)
 		t.Fail()
 		return
 	}
 
-	res, err := selectExec.Execute(conn)
+	err = selectExec.Execute(conn)
+	res := selectExec.GetResult()
 
 	// THEN
 	if err != nil {
@@ -173,14 +176,14 @@ func TestInsertMultipleAndSelectWithParam(t *testing.T) {
 	testObj := Test{Int64Field: 54, IntField: 12, StringField: "asdf"}
 	testObjSecond := Test{Int64Field: 12, IntField: 54, StringField: "fdsa"}
 
-	insertExec, err := exec.NewInsert(orm, testObj)
+	insertExec, err := exec.NewInsert(orm, &testObj)
 	if err != nil {
 		log.LogError("TestInsertMultipleAndSelectWithParam setup failed: %s", err)
 		t.Fail()
 		return
 	}
 
-	insertSecond, err := exec.NewInsert(orm, testObjSecond)
+	insertSecond, err := exec.NewInsert(orm, &testObjSecond)
 	if err != nil {
 		log.LogError("TestInsertMultipleAndSelectWithParam setup failed: %s", err)
 		t.Fail()
@@ -196,21 +199,22 @@ func TestInsertMultipleAndSelectWithParam(t *testing.T) {
 
 	// WHEN
 
-	_, err = insertExec.Execute(conn)
+	err = insertExec.Execute(conn)
 	if err != nil {
 		log.LogError("TestInsertMultipleAndSelectWithParam first insert failed: %s", err)
 		t.Fail()
 		return
 	}
 
-	_, err = insertSecond.Execute(conn)
+	err = insertSecond.Execute(conn)
 	if err != nil {
 		log.LogError("TestInsertMultipleAndSelectWithParam second insert failed: %s", err)
 		t.Fail()
 		return
 	}
 
-	res, err := selectExec.Execute(conn)
+	err = selectExec.Execute(conn)
+	res := selectExec.GetResult()
 
 	// THEN
 	if err != nil {
@@ -243,7 +247,7 @@ func TestInsertAndUpdate(t *testing.T) {
 
 	testObj := Test{Int64Field: 54, IntField: 12, StringField: "asdf"}
 
-	insertExec, err := exec.NewInsert(orm, testObj)
+	insertExec, err := exec.NewInsert(orm, &testObj)
 	if err != nil {
 		log.LogError("TestInsertAndUpdate setup failed: %s", err)
 		t.Fail()
@@ -259,14 +263,16 @@ func TestInsertAndUpdate(t *testing.T) {
 
 	// WHEN
 
-	_, err = insertExec.Execute(conn)
+	err = insertExec.Execute(conn)
 	if err != nil {
 		log.LogError("TestInsertAndUpdate insert failed: %s", err)
 		t.Fail()
 		return
 	}
 
-	res, err := selectExec.Execute(conn)
+	err = selectExec.Execute(conn)
+	res := selectExec.GetResult()
+
 	if err != nil {
 		log.LogError("TestInsertAndUpdate re-select failed: %s", err)
 		t.Fail()
@@ -285,8 +291,9 @@ func TestInsertAndUpdate(t *testing.T) {
 		return
 	}
 
-	_, err = updateExec.Execute(conn)
-	res, selectErr := selectExec.Execute(conn)
+	err = updateExec.Execute(conn)
+	selectErr := selectExec.Execute(conn)
+	res = selectExec.GetResult()
 
 	// THEN
 	if err != nil {
@@ -326,14 +333,14 @@ func TestInsertAndDelete(t *testing.T) {
 
 	testObj := Test{Int64Field: 54, IntField: 12, StringField: "asdf"}
 
-	insertExec, err := exec.NewInsert(orm, testObj)
+	insertExec, err := exec.NewInsert(orm, &testObj)
 	if err != nil {
 		log.LogError("TestInsertAndDelete setup failed: %s", err)
 		t.Fail()
 		return
 	}
 
-	_, err = insertExec.Execute(conn)
+	err = insertExec.Execute(conn)
 	if err != nil {
 		log.LogError("TestInsertAndDelete setup failed: %s", err)
 		t.Fail()
@@ -347,7 +354,8 @@ func TestInsertAndDelete(t *testing.T) {
 		return
 	}
 
-	selectRes, err := selectExec.Execute(conn)
+	err = selectExec.Execute(conn)
+	selectRes := selectExec.GetResult()
 
 	if err != nil {
 		log.LogError("TestInsertAndDelete setup failed. %s", err)
@@ -358,7 +366,7 @@ func TestInsertAndDelete(t *testing.T) {
 	deleteExec, err := exec.NewDelete(orm, selectRes)
 
 	// WHEN
-	_, err = deleteExec.Execute(conn)
+	err = deleteExec.Execute(conn)
 
 	// THEN
 	if err != nil {
@@ -367,7 +375,9 @@ func TestInsertAndDelete(t *testing.T) {
 		return
 	}
 
-	selectRes, err = selectExec.Execute(conn)
+	err = selectExec.Execute(conn)
+	selectRes = selectExec.GetResult()
+
 	if len(selectRes) != 0 {
 		log.LogError("TestInsertAndDelete test failed. Expected: 0, Actual: %s", len(selectRes))
 		t.Fail()
@@ -386,7 +396,7 @@ func TestBoolInsertAndSelectSingle(t *testing.T) {
 
 	testObj := TestWithBool{BoolField: true}
 
-	insertExec, err := exec.NewInsert(orm, testObj)
+	insertExec, err := exec.NewInsert(orm, &testObj)
 	if err != nil {
 		log.LogError("TestBoolInsertAndSelectSingle setup failed: %s", err)
 		t.Fail()
@@ -401,14 +411,15 @@ func TestBoolInsertAndSelectSingle(t *testing.T) {
 	}
 
 	// WHEN
-	_, err = insertExec.Execute(conn)
+	err = insertExec.Execute(conn)
 	if err != nil {
 		log.LogError("TestBoolInsertAndSelectSingle insert failed: %s", err)
 		t.Fail()
 		return
 	}
 
-	res, err := selectExec.Execute(conn)
+	err = selectExec.Execute(conn)
+	res := selectExec.GetResult()
 
 	// THEN
 	if err != nil {
@@ -441,7 +452,7 @@ func TestTimeInsertAndSelectSingle(t *testing.T) {
 	now := time.Now().UnixMilli()
 	testObj := TestWithTime{TimeField: now}
 
-	insertExec, err := exec.NewInsert(orm, testObj)
+	insertExec, err := exec.NewInsert(orm, &testObj)
 	if err != nil {
 		log.LogError("TestTimeInsertAndSelectSingle setup failed: %s", err)
 		t.Fail()
@@ -456,14 +467,15 @@ func TestTimeInsertAndSelectSingle(t *testing.T) {
 	}
 
 	// WHEN
-	_, err = insertExec.Execute(conn)
+	err = insertExec.Execute(conn)
 	if err != nil {
 		log.LogError("TestTimeInsertAndSelectSingle insert failed: %s", err)
 		t.Fail()
 		return
 	}
 
-	res, err := selectExec.Execute(conn)
+	err = selectExec.Execute(conn)
+	res := selectExec.GetResult()
 
 	// THEN
 	if err != nil {
diff --git a/test/repository_test.go b/test/repository_test.go
index 9c3803d..50d181e 100644
--- a/test/repository_test.go
+++ b/test/repository_test.go
@@ -26,13 +26,13 @@ func TestRepoSelectAll(t *testing.T) {
 	defer cleanUp("test.db", conn)
 
 	testObj := Test{Int64Field: 54, IntField: 12, StringField: "asdf"}
-	insertExec, err := exec.NewInsert(orm, testObj)
+	insertExec, err := exec.NewInsert(orm, &testObj)
 	if err != nil {
 		log.LogError("TestRepoSelectAll setup failed: %s", err)
 		t.Fail()
 		return
 	}
-	_, err = insertExec.Execute(conn)
+	err = insertExec.Execute(conn)
 	repo := repository.NewRepository[*Test](conn, orm)
 
 	// WHEN
@@ -52,13 +52,13 @@ func TestRepoSelectByPk(t *testing.T) {
 	defer cleanUp("test.db", conn)
 
 	testObj := Test{Int64Field: 54, IntField: 12, StringField: "asdf"}
-	insertExec, err := exec.NewInsert(orm, testObj)
+	insertExec, err := exec.NewInsert(orm, &testObj)
 	if err != nil {
 		log.LogError("TestRepoSelectByPk setup failed: %s", err)
 		t.Fail()
 		return
 	}
-	_, err = insertExec.Execute(conn)
+	err = insertExec.Execute(conn)
 	repo := repository.NewRepository[*Test](conn, orm)
 
 	// WHEN
@@ -78,13 +78,13 @@ func TestRepoSelectByCompundPk(t *testing.T) {
 	defer cleanUp("test.db", conn)
 
 	testObj := TestWithCompositePk{ID: 42069, Name: "Test"}
-	insertExec, err := exec.NewInsert(orm, testObj)
+	insertExec, err := exec.NewInsert(orm, &testObj)
 	if err != nil {
 		log.LogError("TestRepoSelectByCompundPk setup failed: %s", err)
 		t.Fail()
 		return
 	}
-	_, err = insertExec.Execute(conn)
+	err = insertExec.Execute(conn)
 	repo := repository.NewRepository[*TestWithCompositePk](conn, orm)
 
 	// WHEN