Drop all entries from table `user`:
```{sql}
-DELETE FROM `user`;
+DELETE FROM `user` WHERE user_id != 0;
```
DELETE FROM wrregion;
```
+Insert previously deleted values:
+```
+INSERT INTO `user` VALUES (2,'RedirectBot','','','','20080925192203','','20120902200108','ea19a572ecaf2a6d5934b153e52c3ab9','20120902200103',NULL,'20120902200103','20080925192203',1,NULL);
+INSERT INTO `user` VALUES (504,'Johndoe','John Doe',':pbkdf2:sha512:30000:64:hvqT9kNNazXmOigsCc4ewQ==:hytd5I3h38y7jVmqXrv6IKD1zzJYp8ZrUyodInP49VbtKWfQAOYvhmbVFCdl7JK/suPmFLKbe309/jlta2Gk4A==','',NULL,'john.doe@example.com','20191129090658','f0a018e0cf3384411373d83b212128f0',NULL,'bdb23486b4efcab13063fabacc109bae','20191206090650','20191129090650',0,NULL);
+```
+
Export data to SQL: