fix reading lob as output parameters

examples/TimeStamp TZ/main.go

@@ -0,0 +1,113 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	go_ora "github.com/sijms/go-ora/v2"
+	"os"
+	"time"
+)
+
+func createTable(conn *sql.DB) error {
+	t := time.Now()
+	sqlText := `CREATE TABLE TEMP_TABLE_322(
+    ID          NUMBER(10),
+    DATA        TIMESTAMP WITH TIME ZONE
+	)`
+	_, err := conn.Exec(sqlText)
+	if err != nil {
+		return err
+	}
+	fmt.Println("Finish create table: ", time.Now().Sub(t))
+	return nil
+}
+func dropTable(conn *sql.DB) error {
+	t := time.Now()
+	_, err := conn.Exec("drop table TEMP_TABLE_322 purge")
+	if err != nil {
+		return err
+	}
+	fmt.Println("Finish drop table: ", time.Now().Sub(t))
+	return nil
+}
+
+func insertData(conn *sql.DB, loc string) error {
+	data := time.Now()
+	if len(loc) > 0 {
+		zoneLoc, err := time.LoadLocation(loc)
+		if err != nil {
+			return err
+		}
+		data = data.In(zoneLoc)
+	}
+
+	t := time.Now()
+	_, err := conn.Exec(`INSERT INTO TEMP_TABLE_322(ID, DATA) VALUES (:1 , :2)`,
+		1, go_ora.TimeStampTZ(data))
+	if err != nil {
+		return err
+	}
+	fmt.Println("Finish insert data: ", time.Now().Sub(t))
+	return nil
+}
+
+func queryData(conn *sql.DB) error {
+	t := time.Now()
+	var data time.Time
+	rows, err := conn.Query(`SELECT DATA FROM TEMP_TABLE_322`)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		err = rows.Close()
+		if err != nil {
+			fmt.Println("can't close rows: ", err)
+		}
+	}()
+	for rows.Next() {
+		err = rows.Scan(&data)
+		if err != nil {
+			return err
+		}
+		fmt.Println(data, "\tLocation: ", data.Location())
+	}
+	fmt.Println("Finish query data: ", time.Now().Sub(t))
+	return nil
+}
+func main() {
+	conn, err := sql.Open("oracle", os.Getenv("DSN"))
+	if err != nil {
+		fmt.Println("can't open connection: ", err)
+		return
+	}
+	defer func() {
+		err = conn.Close()
+		if err != nil {
+			fmt.Println("can't close connection: ", err)
+		}
+	}()
+
+	err = createTable(conn)
+	if err != nil {
+		fmt.Println("can't create table: ", err)
+		return
+	}
+
+	defer func() {
+		err = dropTable(conn)
+		if err != nil {
+			fmt.Println("can't drop table: ", err)
+		}
+	}()
+	err = insertData(conn, "Asia/Kolkata")
+	//err = insertData(conn, "")
+	if err != nil {
+		fmt.Println("can't insert data: ", err)
+		return
+	}
+	err = queryData(conn)
+	if err != nil {
+		fmt.Println("can't query data: ", err)
+		return
+	}
+}

v2/lob.go

@@ -2,7 +2,6 @@ package go_ora
 
 import (
 	"bytes"
-	"database/sql/driver"
 	"errors"
 	"go/types"
 )
@@ -709,26 +708,26 @@ func (val *NClob) Scan(value interface{}) error {
 	return nil
 }
 
-func (val *Clob) Value() (driver.Value, error) {
-	if val.Valid {
-		return val.String, nil
-	} else {
-		return nil, nil
-	}
-}
-
-func (val *NClob) Value() (driver.Value, error) {
-	if val.Valid {
-		return val.String, nil
-	} else {
-		return nil, nil
-	}
-}
-
-func (val *Blob) Value() (driver.Value, error) {
-	if val.Valid {
-		return val.Data, nil
-	} else {
-		return nil, nil
-	}
-}
+//func (val *Clob) Value() (driver.Value, error) {
+//	if val.Valid {
+//		return val.String, nil
+//	} else {
+//		return nil, nil
+//	}
+//}
+//
+//func (val *NClob) Value() (driver.Value, error) {
+//	if val.Valid {
+//		return val.String, nil
+//	} else {
+//		return nil, nil
+//	}
+//}
+//
+//func (val *Blob) Value() (driver.Value, error) {
+//	if val.Valid {
+//		return val.Data, nil
+//	} else {
+//		return nil, nil
+//	}
+//}