diff --git a/internal/statements/insert.go b/internal/statements/insert.go
index 21164ce1..15978a43 100644
--- a/internal/statements/insert.go
+++ b/internal/statements/insert.go
@@ -176,12 +176,7 @@ func (statement *Statement) GenInsertSQL(colNames []string, args []interface{})
 			if err := statement.dialect.Quoter().QuoteTo(buf.Builder, table.AutoIncrement); err != nil {
 				return nil, err
 			}
-		} /* else if statement.dialect.URI().DBType == schemas.ORACLE {
-			if _, err := buf.WriteString(fmt.Sprintf("; select %s.currval from dual",
-				dialects.OracleSeqName(tableName))); err != nil {
-				return nil, err
-			}
-		}*/
+		}
 	}
 
 	return buf, nil
diff --git a/session_insert.go b/session_insert.go
index 283c5d26..09c4b0f7 100644
--- a/session_insert.go
+++ b/session_insert.go
@@ -512,7 +512,11 @@ func (session *Session) genInsertColumns(bean interface{}) ([]string, []interfac
 				return nil, nil, err
 			}
 			if session.engine.dialect.URI().DBType == schemas.ORACLE {
-				args = append(args, t)
+				if col.SQLType.IsNumeric() {
+					args = append(args, t.Unix())
+				} else {
+					args = append(args, t)
+				}
 			} else {
 				args = append(args, val)
 			}
diff --git a/session_update.go b/session_update.go
index 4fd45a53..365195d6 100644
--- a/session_update.go
+++ b/session_update.go
@@ -220,7 +220,11 @@ func (session *Session) Update(bean interface{}, condiBean ...interface{}) (int6
 				return 0, err
 			}
 			if session.engine.dialect.URI().DBType == schemas.ORACLE {
-				args = append(args, t)
+				if col.SQLType.IsNumeric() {
+					args = append(args, t.Unix())
+				} else {
+					args = append(args, t)
+				}
 			} else {
 				args = append(args, val)
 			}