diff --git a/README.md b/README.md
index 7b03336..95e7887 100644
--- a/README.md
+++ b/README.md
@@ -78,8 +78,11 @@ sqlite3 database.db
 ```
 
 ```sql
-CREATE INDEX index_qq ON qq (qq_number, phone_number);
-CREATE INDEX index_jd ON jd (email, id_number, phone_number);
+CREATE INDEX index_qq_qq_number ON qq (qq_number);
+CREATE INDEX index_qq_phone_number ON qq (phone_number);
+CREATE INDEX index_jd_email ON jd (email);
+CREATE INDEX index_jd_id_number ON jd (id_number);
+CREATE INDEX index_jd_phone_number ON jd (phone_number);
 ```
 
 4. 导入顺丰库