diff --git a/app/main.go b/app/main.go
index 2e5a0b8..4d3dcf3 100644
--- a/app/main.go
+++ b/app/main.go
@@ -21,7 +21,7 @@ func wait() {
 func main() {
 	onlyServer := len(os.Args) > 1 && os.Args[1] == "dtmsvr"
 	if !onlyServer { // 实际线上运行，只启动dtmsvr，不准备table相关的数据
-		dtmsvr.PopulateMysql(true)
+		dtmsvr.PopulateDB(true)
 	}
 	dtmsvr.StartSvr()              // 启动dtmsvr的api服务
 	go dtmsvr.CronExpiredTrans(-1) // 启动dtmsvr的定时过期查询
@@ -38,7 +38,7 @@ func main() {
 	}
 
 	// 下面是各类的例子
-	examples.PopulateMysql(true)
+	examples.PopulateDB(true)
 	app := examples.BaseAppStartup()
 	if os.Args[1] == "xa" { // 启动xa示例
 		examples.XaSetup(app)
diff --git a/common/types_test.go b/common/types_test.go
index b7e242e..21bc7ff 100644
--- a/common/types_test.go
+++ b/common/types_test.go
@@ -7,18 +7,18 @@ import (
 )
 
 type testConfig struct {
-	Mysql map[string]string `yaml:"Mysql"`
+	DB map[string]string `yaml:"DB"`
 }
 
 var config = testConfig{}
 
 func init() {
 	InitConfig(GetProjectDir(), &config)
-	config.Mysql["database"] = ""
+	config.DB["database"] = ""
 }
 
 func TestDb(t *testing.T) {
-	db := DbGet(config.Mysql)
+	db := DbGet(config.DB)
 	err := func() (rerr error) {
 		defer P2E(&rerr)
 		dbr := db.NoMust().Exec("select a")
@@ -32,7 +32,7 @@ func TestDb(t *testing.T) {
 }
 
 func TestDbAlone(t *testing.T) {
-	db, con := DbAlone(config.Mysql)
+	db, con := DbAlone(config.DB)
 	dbr := db.Exec("select 1")
 	assert.Equal(t, nil, dbr.Error)
 	con.Close()
diff --git a/conf.sample.yml b/conf.sample.yml
index fa5af2f..d17de37 100644
--- a/conf.sample.yml
+++ b/conf.sample.yml
@@ -1,4 +1,5 @@
-Mysql:
+DB:
+  driver: 'mysql'
   host: 'localhost'
   user: 'root'
   password: ''
diff --git a/dtmsvr/config.go b/dtmsvr/config.go
index b6fa47f..a078691 100644
--- a/dtmsvr/config.go
+++ b/dtmsvr/config.go
@@ -4,7 +4,7 @@ import "github.com/yedf/dtm/common"
 
 type dtmsvrConfig struct {
 	TransCronInterval int64             `yaml:"TransCronInterval"` // 单位秒 当事务等待这个时间之后，还没有变化，则进行一轮处理，包括prepared中的任务和committed的任务
-	Mysql             map[string]string `yaml:"Mysql"`
+	DB                map[string]string `yaml:"DB"`
 }
 
 var config = &dtmsvrConfig{
@@ -15,5 +15,5 @@ var dbName = "dtm"
 
 func init() {
 	common.InitConfig(common.GetProjectDir(), &config)
-	config.Mysql["database"] = ""
+	config.DB["database"] = ""
 }
diff --git a/dtmsvr/dtmsvr.sql b/dtmsvr/dtmsvr.mysql.sql
similarity index 100%
rename from dtmsvr/dtmsvr.sql
rename to dtmsvr/dtmsvr.mysql.sql
diff --git a/dtmsvr/dtmsvr_test.go b/dtmsvr/dtmsvr_test.go
index a5d569b..072d7e9 100644
--- a/dtmsvr/dtmsvr_test.go
+++ b/dtmsvr/dtmsvr_test.go
@@ -20,9 +20,9 @@ var app *gin.Engine
 func TestMain(m *testing.M) {
 	TransProcessedTestChan = make(chan string, 1)
 	common.InitConfig(common.GetProjectDir(), &config)
-	config.Mysql["database"] = dbName
-	PopulateMysql(false)
-	examples.PopulateMysql(false)
+	config.DB["database"] = dbName
+	PopulateDB(false)
+	examples.PopulateDB(false)
 	// 启动组件
 	go StartSvr()
 	app = examples.BaseAppStartup()
@@ -130,7 +130,7 @@ func transQuery(t *testing.T, gid string) {
 
 func TestSqlDB(t *testing.T) {
 	asserts := assert.New(t)
-	db := common.DbGet(config.Mysql)
+	db := common.DbGet(config.DB)
 	transInfo := &dtmcli.TransInfo{
 		TransType:  "saga",
 		Gid:        "gid2",
diff --git a/dtmsvr/main.go b/dtmsvr/main.go
index 1aefe42..5061beb 100644
--- a/dtmsvr/main.go
+++ b/dtmsvr/main.go
@@ -21,7 +21,8 @@ func StartSvr() {
 	time.Sleep(100 * time.Millisecond)
 }
 
-// PopulateMysql setup mysql data
-func PopulateMysql(skipDrop bool) {
-	examples.RunSQLScript(config.Mysql, common.GetCurrentCodeDir()+"/dtmsvr.sql", skipDrop)
+// PopulateDB setup mysql data
+func PopulateDB(skipDrop bool) {
+	file := fmt.Sprintf("%s/dtmsvr.%s.sql", common.GetCurrentCodeDir(), config.DB["driver"])
+	examples.RunSQLScript(config.DB, file, skipDrop)
 }
diff --git a/dtmsvr/utils.go b/dtmsvr/utils.go
index 63b20ea..0e6ea8b 100644
--- a/dtmsvr/utils.go
+++ b/dtmsvr/utils.go
@@ -18,7 +18,7 @@ var p2e = common.P2E
 var e2p = common.E2P
 
 func dbGet() *common.DB {
-	return common.DbGet(config.Mysql)
+	return common.DbGet(config.DB)
 }
 func writeTransLog(gid string, action string, status string, branch string, detail string) {
 	// if detail == "" {
diff --git a/examples/config.go b/examples/config.go
index 49ff2e3..86e619d 100644
--- a/examples/config.go
+++ b/examples/config.go
@@ -3,7 +3,7 @@ package examples
 import "github.com/yedf/dtm/common"
 
 type exampleConfig struct {
-	Mysql map[string]string `yaml:"Mysql"`
+	DB map[string]string `yaml:"DB"`
 }
 
 var config = exampleConfig{}
@@ -12,5 +12,5 @@ var dbName = "dtm_busi"
 
 func init() {
 	common.InitConfig(common.GetProjectDir(), &config)
-	config.Mysql["database"] = dbName
+	config.DB["database"] = dbName
 }
diff --git a/examples/data.go b/examples/data.go
index e7dcda6..d656c30 100644
--- a/examples/data.go
+++ b/examples/data.go
@@ -1,6 +1,7 @@
 package examples
 
 import (
+	"fmt"
 	"io/ioutil"
 	"strings"
 
@@ -28,7 +29,8 @@ func RunSQLScript(mysql map[string]string, script string, skipDrop bool) {
 	}
 }
 
-// PopulateMysql populate example mysql data
-func PopulateMysql(skipDrop bool) {
-	RunSQLScript(config.Mysql, common.GetCurrentCodeDir()+"/examples.sql", skipDrop)
+// PopulateDB populate example mysql data
+func PopulateDB(skipDrop bool) {
+	file := fmt.Sprintf("%s/examples.%s.sql", common.GetCurrentCodeDir(), config.DB["driver"])
+	RunSQLScript(config.DB, file, skipDrop)
 }
diff --git a/examples/examples.sql b/examples/examples.mysql.sql
similarity index 100%
rename from examples/examples.sql
rename to examples/examples.mysql.sql
diff --git a/examples/main_xa.go b/examples/main_xa.go
index daa2090..d7fe99f 100644
--- a/examples/main_xa.go
+++ b/examples/main_xa.go
@@ -33,16 +33,16 @@ type UserAccountTrading struct {
 func (u *UserAccountTrading) TableName() string { return "user_account_trading" }
 
 func dbGet() *common.DB {
-	return common.DbGet(config.Mysql)
+	return common.DbGet(config.DB)
 }
 
 // XaSetup 挂载http的api，创建XaClient
 func XaSetup(app *gin.Engine) {
 	app.POST(BusiAPI+"/TransInXa", common.WrapHandler(xaTransIn))
 	app.POST(BusiAPI+"/TransOutXa", common.WrapHandler(xaTransOut))
-	config.Mysql["database"] = "dtm_busi"
+	config.DB["database"] = "dtm_busi"
 	var err error
-	XaClient, err = dtmcli.NewXaClient(DtmServer, config.Mysql, app, Busi+"/xa")
+	XaClient, err = dtmcli.NewXaClient(DtmServer, config.DB, app, Busi+"/xa")
 	e2p(err)
 }