diff --git a/transaction.go b/transaction.go
index cbfd9de..b755243 100644
--- a/transaction.go
+++ b/transaction.go
@@ -25,7 +25,7 @@ func TxInsert(tx *sql.Tx, dbname, table string, data map[string]string) (int64,
 	if strings.Contains(table, "select ") {
 		dbName = table
 	} else {
-		dbName = getTableName(dbName, table)
+		dbName = getTableName(dbname, table)
 	}
 	if len(data) < 1 {
 		return 0, errors.New("参数错误，没有要写入的数据")
@@ -186,7 +186,7 @@ func TxPreUpdate(tx *sql.Tx, dbname, table string, data []string, where []string
 	if strings.Contains(table, "select ") {
 		dbName = table
 	} else {
-		dbName = getTableName(dbName, table)
+		dbName = getTableName(dbname, table)
 	}
 
 	if len(where) < 1 {
@@ -228,7 +228,7 @@ func TxDelete(tx *sql.Tx, dbname, table string, where map[string]string, del_cou
 	if strings.Contains(table, "select ") {
 		dbName = table
 	} else {
-		dbName = getTableName(dbName, table)
+		dbName = getTableName(dbname, table)
 	}
 	if len(where) < 1 {
 		return count, errors.New("参数错误，没有删除条件")