update SYS_MDL_DIMSET_ACXMModel b set f_Srccont = (select SYS_MDL_DIMSET.f_Srccont || 'useInnrDataSet=0;' from sinojzxm.SYS_MDL_DIMSET_ACXMModel a where a.rowid = b.rowid) where cst_id = 'ZYXMYE0000002'