diff --git a/internal/api/impl.go b/internal/api/impl.go
index 3303600..77072b0 100644
--- a/internal/api/impl.go
+++ b/internal/api/impl.go
@@ -14,10 +14,10 @@ type ServerImpl struct {
 	Dal dal.DAL
 }
 
-func (pf *ServerImpl) GetBanks(ctx echo.Context) error {
-	log.Printf("GetBanks")
+func (server *ServerImpl) GetBanks(ctx echo.Context) error {
+	log.Print("GetBanks")
 
-	banks, err := pf.Dal.Banks()
+	banks, err := server.Dal.Banks()
 	if err != nil {
 		return ctx.NoContent(http.StatusInternalServerError)
 	}
@@ -29,10 +29,10 @@ func (pf *ServerImpl) GetBanks(ctx echo.Context) error {
 	return ctx.JSON(http.StatusOK, convertBanks(banks))
 }
 
-func (pf *ServerImpl) GetBankById(ctx echo.Context, bankId string) error {
-	log.Printf("GetTransactionById(%v)", bankId)
+func (server *ServerImpl) GetBankById(ctx echo.Context, bankId string) error {
+	log.Printf("GetBankById(%v)", bankId)
 
-	bank, err := pf.Dal.Bank(bankId)
+	bank, err := server.Dal.Bank(bankId)
 	if err != nil {
 		log.Printf("%v", err)
 		return ctx.NoContent(http.StatusInternalServerError)
@@ -45,14 +45,10 @@ func (pf *ServerImpl) GetBankById(ctx echo.Context, bankId string) error {
 	return ctx.JSON(http.StatusOK, convertBank(*bank))
 }
 
-func (pf *ServerImpl) GetTransactions(ctx echo.Context, params GetTransactionsParams) error {
-	if pf.Dal == nil {
-		log.Panic("database not available")
-	}
+func (server *ServerImpl) GetTransactions(ctx echo.Context, params GetTransactionsParams) error {
+	log.Print("GetTransactions")
 
-	// rows, err := pf.Dal.Query("SELECT tc.name, t.date, t.description, t.id, t.amount FROM pfbudget.transactions t LEFT JOIN pfbudget.transactions_categorized tc ON t.id = tc.id")
-
-	transactions, err := pf.Dal.Transactions()
+	transactions, err := server.Dal.Transactions()
 	if err != nil {
 		return ctx.NoContent(http.StatusInternalServerError)
 	}
@@ -64,10 +60,10 @@ func (pf *ServerImpl) GetTransactions(ctx echo.Context, params GetTransactionsPa
 	return ctx.JSON(http.StatusOK, convertTransactions(transactions))
 }
 
-func (pf *ServerImpl) GetTransactionById(ctx echo.Context, transactionId int64) error {
-	log.Printf("GetTransactionById(%d)", transactionId)
+func (server *ServerImpl) GetTransactionById(ctx echo.Context, transactionId int64) error {
+	log.Printf("GetTransactionById(%v)", transactionId)
 
-	transaction, err := pf.Dal.Transaction(transactionId)
+	transaction, err := server.Dal.Transaction(transactionId)
 	if err != nil {
 		log.Printf("%v", err)
 		return ctx.NoContent(http.StatusInternalServerError)
diff --git a/internal/dal/impl.go b/internal/dal/impl.go
index 890cb5e..441a06b 100644
--- a/internal/dal/impl.go
+++ b/internal/dal/impl.go
@@ -12,7 +12,7 @@ type DalImpl struct {
 }
 
 func (dal *DalImpl) Transaction(transactionId int64) (*entity.Transaction, error) {
-	log.Printf("DAL::Transaction(%d)", transactionId)
+	log.Printf("DAL::Transaction(%v)", transactionId)
 
 	if dal.Db == nil {
 		log.Panic("database not available")
@@ -32,6 +32,8 @@ func (dal *DalImpl) Transaction(transactionId int64) (*entity.Transaction, error
 }
 
 func (dal *DalImpl) Transactions() (entity.Transactions, error) {
+	log.Print("DAL::Transactions")
+
 	if dal.Db == nil {
 		log.Panic("database not available")
 	}
@@ -45,7 +47,7 @@ func (dal *DalImpl) Transactions() (entity.Transactions, error) {
 }
 
 func (dal *DalImpl) Bank(bankId string) (*entity.Bank, error) {
-	log.Print("DAL::Bank")
+	log.Printf("DAL::Bank(%v)", bankId)
 
 	if dal.Db == nil {
 		log.Panic("database not available")
@@ -65,7 +67,7 @@ func (dal *DalImpl) Bank(bankId string) (*entity.Bank, error) {
 }
 
 func (dal *DalImpl) Banks() (entity.Banks, error) {
-	log.Printf("DAL::Banks")
+	log.Print("DAL::Banks")
 
 	if dal.Db == nil {
 		log.Panic("database not available")
diff --git a/internal/dal/impl_test.go b/internal/dal/impl_test.go
index 853a3a4..0b5f55f 100644
--- a/internal/dal/impl_test.go
+++ b/internal/dal/impl_test.go
@@ -34,9 +34,8 @@ func TestDalImpl_Transaction(t *testing.T) {
 		want    *entity.Transaction
 		wantErr bool
 	}{
-		{"notfound", fields{db}, args{2, nil}, nil, false},
 		{
-			"found",
+			"200",
 			fields{db},
 			args{
 				1,
@@ -46,6 +45,7 @@ func TestDalImpl_Transaction(t *testing.T) {
 			&entity.Transaction{Id: 1, Date: date, Description: "income", Value: decimal.NewFromInt(1000)},
 			false,
 		},
+		{"404", fields{db}, args{2, nil}, nil, false},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
@@ -116,12 +116,10 @@ func TestDalImpl_Transactions(t *testing.T) {
 			}
 
 			mock.
-				// ExpectQuery("^SELECT .* FROM .*transactions t LEFT JOIN .*transactions_categorized tc ON t.id = tc.id$").
 				ExpectQuery("^SELECT .* FROM .*transactions t$").
 				WithoutArgs().
 				WillReturnRows(
 					mock.
-						// NewRows([]string{"category", "date", "description", "id", "amount"}).
 						NewRows([]string{"id", "date", "description", "amount"}).
 						AddRows(tt.args.rows...),
 				)