diff --git a/storage/tracking/sql_code.go b/storage/tracking/sql_code.go
index 27ea571..832b911 100644
--- a/storage/tracking/sql_code.go
+++ b/storage/tracking/sql_code.go
@@ -8,9 +8,10 @@ import (
 
 const (
 	sql_table = `
-{{- $json := or .Params.jsonType "json" -}}
+{{- $params := .Cont.Storage.Params -}}
+{{- $json := or $params.jsonType "json" -}}
 create table if not exists {{ .Table }} (
-  trackid {{ or .Params.idType "integer" }} primary key,
+  trackid {{ or $params.idType "integer" }} primary key,
   {{ range .Cont.HeadFields -}}{{ toLower . }} text default '',
   {{ end -}}
   timestamp timestamptz default current_timestamp,
@@ -38,6 +39,8 @@ insert into {{ .Table }} (
   {{- end -}})
   returning trackid, timestamp`
 
+	sql_update = ``
+
 	sql_select = `
 select {{ range $j, $c := .Scols -}}
     {{- if ne $j 0 -}}, {{ end }}{{ toLower $c }}{{- end }}
@@ -55,10 +58,11 @@ select {{ range $j, $c := .Scols -}}
 `
 )
 
-var SqlCreate, SqlInsert, SqlSelect *template.Template
+var SqlCreate, SqlInsert, SqlUpdate, SqlSelect *template.Template
 
 func init() {
 	SqlCreate = storage.Template("create_table", sql_table)
 	SqlInsert = storage.Template("insert_track", sql_insert)
+	SqlUpdate = storage.Template("update_track", sql_update)
 	SqlSelect = storage.Template("select_track", sql_select)
 }
diff --git a/storage/tracking/tracking.go b/storage/tracking/tracking.go
index 4994faa..019819e 100644
--- a/storage/tracking/tracking.go
+++ b/storage/tracking/tracking.go
@@ -43,6 +43,15 @@ func MakeTrack(cont *Container, h ...string) *Track {
 	return &tr
 }
 
+func (tr *Track) AsSlice() []any {
+	var sl []any
+	for _, k := range tr.container.HeadFields {
+		sl = append(sl, tr.Head[k])
+	}
+	sl = append(sl, tr.TimeStamp, tr.Data)
+	return sl
+}
+
 func (tr *Track) SetHead(h ...string) {
 	for i, k := range tr.container.HeadFields {
 		if i >= len(h) {
@@ -141,7 +150,6 @@ func (spec *querySpec) setup(cont *Container) {
 		spec.AddOrd(c, false)
 	}
 	spec.Cont = cont
-	spec.Params = cont.Storage.Params
 }
 
 func (cont *Container) Get(id lib.Ident) *Track {
@@ -196,11 +204,11 @@ func (cont *Container) NewTrack(h []string, data lib.Map) *Track {
 	return tr
 }
 
-func (cont *Container) Save(t *Track) lib.Ident {
-	return 0
+func (cont *Container) Save(tr *Track) *Track {
+	return tr
 }
 
-func (cont *Container) Insert(tr *Track) lib.Ident {
+func (cont *Container) Insert(tr *Track) *Track {
 	quSpec := &querySpec{
 		Scols: append(cont.HeadFields, "Data"),
 	}
@@ -219,9 +227,22 @@ func (cont *Container) Insert(tr *Track) lib.Ident {
 		return err
 	}
 	if err := cont.Storage.Query(proc, sql, values...); err == nil {
-		return tr.trackId
+		return tr
 	}
-	return 0
+	return nil
+}
+
+func (cont *Container) Update(tr *Track) *Track {
+	quSpec := &querySpec{
+		Qucols: lib.StrSlice{"trackid"},
+	}
+	quSpec.setup(cont)
+	sql := storage.BuildSql(SqlUpdate, quSpec)
+	n, _ := cont.Storage.Exec(sql, append(tr.AsSlice(), tr.trackId)...)
+	if n == 1 {
+		return tr
+	}
+	return nil
 }
 
 func ParseDateTime(inp string) *time.Time {