ALTER TABLE xwikidoc MODIFY XWD_DATE datetime(6) NOT NULL, MODIFY XWD_CONTENT_UPDATE_DATE datetime(6) NOT NULL, MODIFY XWD_CREATION_DATE datetime(6) NOT NULL;
ALTER TABLE xwikircs MODIFY XWR_DATE datetime(6) NOT NULL;
ALTER TABLE xwikirecyclebin MODIFY XDD_DATE datetime(6) NOT NULL;
ALTER TABLE xwikilock MODIFY XWL_DATE datetime(6) NOT NULL;
ALTER TABLE xwikiattachment MODIFY XWA_DATE datetime(6) NOT NULL;
ALTER TABLE xwikidates MODIFY XWS_VALUE datetime(6) DEFAULT NULL;
ALTER TABLE xwikistatsvisit MODIFY XWV_START_DATE datetime(6) DEFAULT NULL, MODIFY XWV_END_DATE datetime(6) DEFAULT NULL;
ALTER TABLE xwikicomments MODIFY XWP_DATE datetime(6) DEFAULT NULL;