-generating an aggregated report by joining the factor table and the transactional data cube in a database JOIN operation at least via the first ID, wherein only a factor-dependent fraction of the transactional data is aggregated in accordance with the topology of the sub-graph; and -returning...
$addToSetInserts values to an array but no duplicates in the resulting document $pushInserts values to an array in the resulting document $firstReturns the first document from the source document $lastReturns the last document from the source document ...
DTS_E_BITASK_ERROR_IN_DB_OPERATION 欄位 DTS_E_BITASK_ERROR_IN_LOAD_FROM_XML 欄位 DTS_E_BITASK_ERROR_IN_SAVE_TO_XML 欄位 DTS_E_BITASK_EXECUTE_FAILED 欄位 DTS_E_BITASK_EXECUTION_FAILED 欄位 DTS_E_BITASK_HANDLER_NOT_FOUND 欄位 DTS_E_BITASK_INITIALIZATION_WITH_WRONG_XML_ELEMENT ...
Der WertAusgabe-Layerenthält Felder mit den Ergebnissen der statistischen Operation. Die Statistik nach Anzahl wird standardmäßig in das FeldROW_COUNTaufgenommen. Mit diesem Werkzeug stehen folgende statistische Operationen zur Verfügung: Anzahl, Summe, Durchschnitt, Minimum, Maximum und Stan...
Project: This operation is similar to a SELECT SQL clause, and it’s used for removing the “_id” field from our working set (which is useless for our reporting logic). Group: This operation is similar to a GROUP BY SQL clause, and it does all the calculation in memory. This is wh...
butinitscommonformofequalitybasedgroupsandrestrictedaggregatefunctionsanumber ofproblemsremainunsolved.Variousextensionstothisconcepthavebeenintroducedoverthelast yearsregardinguser-definedfunctionsforaggregationandgrouping.Especially,existingextensions tothegroupingoperationlikesimplederivationsofgroup-byvaluesdonotmeetthe...
That is, the type of data that appears in a column of a table. [Atz p16] Domain – SQL keyword specifying that an operation acts on a domain object. [Atz p91] Domain Constraint – (also Value constraint). A form of tuple constraint which specifies allowable values of particular attribute...
the improved internet url catalogue for the on-line information search operation that the client computer that (i i) is used to support to enable Web carries out, and (iii) a plurality of types of systems based on MDDB, for the complex information state in response to reflecting in MDDB,...
The group-by and aggregation are fundamental but time-consuming operations for a DBMS. Using hash tables is a common approach to perform a grouping. In this paper, we study how to utilize the heterogeneous CPU-GPU platform to accelerate the group-by and aggregation based on the chained ...
the improved internet url catalogue for the on-line information search operation that the client computer that (i i) is used to support to enable Web carries out, and (iii) a plurality of types of systems based on MDDB, for the complex information state in response to reflecting in MDDB,...