diff --git a/dtmcli/dtmimp/utils.go b/dtmcli/dtmimp/utils.go
index f2d77dd..f42ac72 100644
--- a/dtmcli/dtmimp/utils.go
+++ b/dtmcli/dtmimp/utils.go
@@ -18,6 +18,7 @@ import (
 	"strconv"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/go-resty/resty/v2"
 	"go.uber.org/zap"
@@ -215,13 +216,15 @@ func DBExec(db DB, sql string, values ...interface{}) (affected int64, rerr erro
 	if sql == "" {
 		return 0, nil
 	}
+	began := time.Now()
 	sql = GetDBSpecial().GetPlaceHoldSQL(sql)
 	r, rerr := db.Exec(sql, values...)
+	used := time.Since(began) / time.Millisecond
 	if rerr == nil {
 		affected, rerr = r.RowsAffected()
-		Logf("affected: %d for %s %v", affected, sql, values)
+		Logf("used: %d ms affected: %d for %s %v", used, affected, sql, values)
 	} else {
-		LogRedf("exec error: %v for %s %v", rerr, sql, values)
+		LogRedf("used: %d ms exec error: %v for %s %v", used, rerr, sql, values)
 	}
 	return
 }
diff --git a/examples/base_types.go b/examples/base_types.go
index 400be7f..8ebfb5f 100644
--- a/examples/base_types.go
+++ b/examples/base_types.go
@@ -39,8 +39,8 @@ func (t *TransReq) String() string {
 func GenTransReq(amount int, outFailed bool, inFailed bool) *TransReq {
 	return &TransReq{
 		Amount:         amount,
-		TransOutResult: dtmimp.If(outFailed, dtmcli.ResultFailure, dtmcli.ResultSuccess).(string),
-		TransInResult:  dtmimp.If(inFailed, dtmcli.ResultFailure, dtmcli.ResultSuccess).(string),
+		TransOutResult: dtmimp.If(outFailed, dtmcli.ResultFailure, "").(string),
+		TransInResult:  dtmimp.If(inFailed, dtmcli.ResultFailure, "").(string),
 	}
 }
 
@@ -48,8 +48,8 @@ func GenTransReq(amount int, outFailed bool, inFailed bool) *TransReq {
 func GenBusiReq(amount int, outFailed bool, inFailed bool) *BusiReq {
 	return &BusiReq{
 		Amount:         int64(amount),
-		TransOutResult: dtmimp.If(outFailed, dtmcli.ResultFailure, dtmcli.ResultSuccess).(string),
-		TransInResult:  dtmimp.If(inFailed, dtmcli.ResultFailure, dtmcli.ResultSuccess).(string),
+		TransOutResult: dtmimp.If(outFailed, dtmcli.ResultFailure, "").(string),
+		TransInResult:  dtmimp.If(inFailed, dtmcli.ResultFailure, "").(string),
 	}
 }