文檔描述了可能做的正則表達式約束: ALTER PROPERTY Account.gender REGEXP "[M|F]"
我總是收到異常: com.orientechnologies.orient.core.command.OCommandExecutorNotFoundException:
Cannot find a command executor for the command r
存在我有一個獨特的約束邊緣: CREATE CLASS hasAssignee extends E
CREATE PROPERTY hasAssignee.out LINK Assignable
CREATE PROPERTY hasAssignee.in LINK User
CREATE INDEX UniqueHasAssignee ON hasAssignee(out,in) UNIQ
我想寫一個匹配語句來拉動相關數據。 CREATE CLASS Member EXTENDS V;
CREATE CLASS DirectVolumes EXTENDS V;
CREATE SEQUENCE dvSequence TYPE ORDERED;
CREATE CLASS GroupVolumes EXTENDS V;
CREATE SEQUENCE groupVolumesSeq