diff --git a/engine.go b/engine.go
index 447853b9..b47fda89 100644
--- a/engine.go
+++ b/engine.go
@@ -1404,6 +1404,9 @@ func (engine *Engine) NowTime2(sqlTypeName string) (interface{}, time.Time) {
 }
 
 func (engine *Engine) FormatTime(sqlTypeName string, t time.Time) (v interface{}) {
+	if engine.dialect.DBType() == core.ORACLE {
+		return t
+	}
 	switch sqlTypeName {
 	case core.Time:
 		s := engine.TZTime(t).Format("2006-01-02 15:04:05") //time.RFC3339
diff --git a/session.go b/session.go
index 4c414209..3f6e9853 100644
--- a/session.go
+++ b/session.go
@@ -448,6 +448,13 @@ func (session *Session) exec(sqlStr string, args ...interface{}) (sql.Result, er
 
 	return session.Engine.LogSQLExecutionTime(sqlStr, args, func() (sql.Result, error) {
 		if session.IsAutoCommit {
+			//oci8 can not auto commit (github.com/mattn/go-oci8)
+			if session.Engine.dialect.DBType() == core.ORACLE {
+				session.Begin()
+				r, err := session.Tx.Exec(sqlStr, args...)
+				session.Commit()
+				return r, err
+			}
 			return session.innerExec(sqlStr, args...)
 		}
 		return session.Tx.Exec(sqlStr, args...)
diff --git a/statement.go b/statement.go
index 74a21e1e..c7d881f4 100644
--- a/statement.go
+++ b/statement.go
@@ -1221,7 +1221,11 @@ func (statement *Statement) genSelectSql(columnStr string) (a string) {
 	}
 	var fromStr string = " FROM " + statement.Engine.Quote(statement.TableName())
 	if statement.TableAlias != "" {
-		fromStr += " AS " + statement.Engine.Quote(statement.TableAlias)
+		if statement.Engine.dialect.DBType() == core.ORACLE {
+			fromStr += " " + statement.Engine.Quote(statement.TableAlias)
+		} else {
+			fromStr += " AS " + statement.Engine.Quote(statement.TableAlias)
+		}
 	}
 	if statement.JoinStr != "" {
 		fromStr = fmt.Sprintf("%v %v", fromStr, statement.JoinStr)
@@ -1277,12 +1281,16 @@ func (statement *Statement) genSelectSql(columnStr string) (a string) {
 	if statement.OrderStr != "" {
 		a = fmt.Sprintf("%v ORDER BY %v", a, statement.OrderStr)
 	}
-	if statement.Engine.dialect.DBType() != core.MSSQL {
+	if statement.Engine.dialect.DBType() != core.MSSQL && statement.Engine.dialect.DBType() != core.ORACLE {
 		if statement.Start > 0 {
 			a = fmt.Sprintf("%v LIMIT %v OFFSET %v", a, statement.LimitN, statement.Start)
 		} else if statement.LimitN > 0 {
 			a = fmt.Sprintf("%v LIMIT %v", a, statement.LimitN)
 		}
+	} else if statement.Engine.dialect.DBType() == core.ORACLE {
+		if statement.Start != 0 || statement.LimitN != 0 {
+			a = fmt.Sprintf("SELECT %v FROM (SELECT %v,ROWNUM RN FROM (%v) at WHERE ROWNUM <= %d) aat WHERE RN > %d", columnStr, columnStr, a, statement.Start+statement.LimitN, statement.Start)
+		}
 	}
 
 	return