value-from-filed question!

listener

Why in the dbschema.cfg value-from-filed is :LocDet/0/det
But When DAS , value-from-filed is: LocDet/0/det/0


????



the dbschema.cfg context:


When I Add DCR, the OpenDeploy log :


DBD: TUPLE={TeamSite/Templating/DCR/Type=Loc/LocDet, LocDet/0/det/0=abdcd, IWOV_PROC_FLAG=true, LocDet/0=, state=Original, path=templatedata\Loc\LocDet\data\aa}
DBD: TTableSchemaHelper object for [IWT_1DBE39F270C5] found in cache.
DBD: RowsExistForPathELECT COUNT(*) FROM IWT_1DBE39F270C5 WHERE Path = ?
DBD: INSERT:INSERT INTO IWT_1DBE39F270C5(Path,IW_State,det) VALUES (?,?,?)
DBD: Column: Path, field: path, Index: 1,Converting 'templatedata\Loc\LocDet\data\aa' to VARCHAR
DBD: Column: IW_State, field: state, Index: 2,Converting 'Original' to VARCHAR
DBD: Column: detail, field: LocDet/0/det, Index: 3,null
DBD:
DBD: *******************************************************
DBD: SQLException occured in TDbSchemaGroupCfg
DBD: Exception Message: ORA-01400: cannot insert NULL into ("DDUSER"."IWT_1DBE39F270C5"."DET")

DBD: Vendor Error Code: 1400
DBD: SQL state: 23000
DBD: *******************************************************