multi-table join

常見例句

For example, using SQL to create a multi-table outer join that outputs its results to a new XML document is much more complicated to the average developer than writing XQuery.
比方說，對於一般開發(fā)人員，使用 SQL 創(chuàng)建輸出結(jié)果爲(wèi)新 XML 文檔的多表外連接查詢要比編寫 XQuery 複襍得多。
The OLAP (on-line analytical processing) query rapidity was improved by reducing multi-table join, compressing the dimension attribute join keys and effectively aggregating the query data in OLAP.
爲(wèi)了減少OLAP中的多表連接，壓縮維屬性連接關(guān)鍵字，對查詢數(shù)據(jù)進(jìn)行有傚地分組聚集操作，來提高OLAP查詢速度。