diff --git a/v2/TestIssues/global_vars.go b/v2/TestIssues/global_vars.go
index 218a887f..b91fdb58 100644
--- a/v2/TestIssues/global_vars.go
+++ b/v2/TestIssues/global_vars.go
@@ -63,6 +63,8 @@ func init() {
 		urlOptions["SSL VERIFY"] = "false"
 		urlOptions["wallet"] = wallet
 	}
+	urlOptions["DATA INTEGRITY"] = "required"
+	urlOptions["ENCRYPTION"] = "required"
 }
 
 func execCmd(db *sql.DB, stmts ...string) error {
diff --git a/v2/TestIssues/issue_486_test.go b/v2/TestIssues/issue_486_test.go
new file mode 100644
index 00000000..e234dfd3
--- /dev/null
+++ b/v2/TestIssues/issue_486_test.go
@@ -0,0 +1,25 @@
+package TestIssues
+
+import "testing"
+
+func TestIssue486(t *testing.T) {
+	db, err := getDB()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer func() {
+		err = db.Close()
+		if err != nil {
+			t.Error(err)
+		}
+	}()
+	var value string
+	err = db.QueryRow("SELECT 'AAA안녕하세요' FROM dual").Scan(&value)
+	if err != nil {
+		t.Error(err)
+	}
+	if value != "AAA안녕하세요" {
+		t.Errorf("expected %s and got %s", "AAA안녕하세요", value)
+	}
+}
diff --git a/v2/TestIssues/issue_532_test.go b/v2/TestIssues/issue_532_test.go
new file mode 100644
index 00000000..61cee015
--- /dev/null
+++ b/v2/TestIssues/issue_532_test.go
@@ -0,0 +1,81 @@
+package TestIssues
+
+import (
+	"database/sql"
+	"strconv"
+	"testing"
+)
+
+func TestIssue532(t *testing.T) {
+	type TTB_DATA struct {
+		ID   int    `db:"ID"`
+		Name string `db:"NAME"`
+	}
+	var createTable = func(db *sql.DB) error {
+		return execCmd(db, `CREATE TABLE TTB_532(
+		EMP_ID NUMBER, 
+		EMP_NAME VARCHAR2(255), 
+	 	PRIMARY KEY (EMP_ID)
+	)`)
+	}
+
+	var dropTable = func(db *sql.DB) error {
+		return execCmd(db, "drop table TTB_532 purge")
+	}
+
+	var insert = func(db *sql.DB, rowNum int) error {
+		data := make([]TTB_DATA, rowNum)
+		for index := range data {
+			data[index].ID = index + 1
+			data[index].Name = "NAME_" + strconv.Itoa(index+1)
+		}
+		_, err := db.Exec(`INSERT INTO TTB_532(EMP_ID, EMP_NAME) VALUES(:ID, :NAME)`, data)
+		return err
+	}
+
+	var query = func(db *sql.DB) error {
+		rows, err := db.Query("SELECT * FROM TTB_532 FOR UPDATE")
+		if err != nil {
+			return err
+		}
+		defer func() {
+			err = rows.Close()
+			if err != nil {
+				t.Error(err)
+			}
+		}()
+		return nil
+	}
+	db, err := getDB()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer func() {
+		err = db.Close()
+		if err != nil {
+			t.Error(err)
+		}
+	}()
+	err = createTable(db)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer func() {
+		err = dropTable(db)
+		if err != nil {
+			t.Error(err)
+		}
+	}()
+	err = insert(db, 7)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	err = query(db)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+}
diff --git a/v2/TestIssues/issue_543_test.go b/v2/TestIssues/issue_543_test.go
new file mode 100644
index 00000000..c60047eb
--- /dev/null
+++ b/v2/TestIssues/issue_543_test.go
@@ -0,0 +1,29 @@
+package TestIssues
+
+import (
+	"testing"
+)
+
+func TestIssue543(t *testing.T) {
+	expected := "CASE  WHEN \"SESSION_ID\" IS NULL THEN \"SECURITY_GROUP_ID\" END "
+	db, err := getDB()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer func() {
+		err = db.Close()
+		if err != nil {
+			t.Error(err)
+		}
+	}()
+	var result string
+	err = db.QueryRow("select column_expression from dba_ind_expressions where index_owner = 'APEX_230200' and index_name = 'WWV_FLOW_WORKSHEET_RPTS_UK' and column_position = 1").Scan(&result)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	if result != expected {
+		t.Errorf("expected: %s and got: %s", expected, result)
+	}
+}
diff --git a/v2/TestIssues/large_udt_array_test.go b/v2/TestIssues/large_udt_array_test.go
new file mode 100644
index 00000000..4ab56f9d
--- /dev/null
+++ b/v2/TestIssues/large_udt_array_test.go
@@ -0,0 +1,101 @@
+package TestIssues
+
+import (
+	"database/sql"
+	go_ora "github.com/sijms/go-ora/v2"
+	"testing"
+)
+
+func TestLargeUDTArray(t *testing.T) {
+	var createTypes = func(db *sql.DB) error {
+		return execCmd(db, `
+		create or replace type stringsType as object(
+			STRING1 varchar2(60),
+			STRING2 varchar2(300)
+		)`, `create or replace type stringsTypeCol as table of stringsType`)
+	}
+	var dropTypes = func(db *sql.DB) error {
+		return execCmd(db, "DROP TYPE stringsTypeCol", "DROP TYPE stringsType")
+	}
+	type StringsType struct {
+		String1 string `udt:"STRING1"`
+		String2 string `udt:"STRING2"`
+	}
+	var inputPars = func(db *sql.DB, input []StringsType) (int, error) {
+		var length int
+		_, err := db.Exec(`
+	DECLARE
+		inp stringsTypeCol;
+	BEGIN
+		inp := :1;
+		:2 := inp.count;
+	END;`, input, go_ora.Out{Dest: &length})
+		return length, err
+	}
+	var outputPars = func(db *sql.DB, length int) ([]StringsType, error) {
+		var output []StringsType
+		_, err := db.Exec(`
+	declare
+		outp stringsTypeCol;
+		ext number;
+	begin 
+		ext := :1;
+		outp := stringsTypeCol();
+		outp.extend(ext);
+		for n in 1..ext
+		loop
+			outp(n) := stringsType('string1','string2');
+		end loop;
+
+		:2 := outp;
+	end;
+	`, length, go_ora.Out{Dest: &output})
+		return output, err
+	}
+	db, err := getDB()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer func() {
+		err = db.Close()
+		if err != nil {
+			t.Error(err)
+		}
+	}()
+	err = createTypes(db)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer func() {
+		err = dropTypes(db)
+		if err != nil {
+			t.Error(err)
+		}
+	}()
+	err = go_ora.RegisterType(db, "stringsType", "stringsTypeCol", StringsType{})
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	size := 0x200
+	output, err := inputPars(db, make([]StringsType, size))
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	if output != size {
+		t.Errorf("expected size: %d and got: %d", size, output)
+		return
+	}
+	outputArray, err := outputPars(db, size)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	if len(outputArray) != size {
+		t.Errorf("expected size: %d and got: %d", size, len(outputArray))
+	}
+
+}