例句與造句

1. And deptno should be listed second , allowing db2 to do a direct index lookup on the first column empno and then a scan on the second deptno for the greater - than
   然后列出deptno ，從而允許db2對(duì)第一列（ empno ）執(zhí)行直接索引查找，然后針對(duì)大于號(hào)掃描第二列（ deptno ） 。
2. The method of memory data management is proposed for the data model been presented . multilayer index with groups , direct index with local id and temp index is used for all kinds of efficient query
   針對(duì)該工程模型，提出了內(nèi)存數(shù)據(jù)管理方法，建立了多層分組索引、基于局部id的直接索引和臨時(shí)索引，以滿足各種高效查詢的需要。
3. Under the condition of new times , chemical enterprises are faced with the difficulty of participating in international competition , and the most direct index of this difficulty is the competitive ability of enterprise ' s foreign trade for their products and service
   在新的時(shí)代條件下，中國成功的加入了世貿(mào)組織，化工企業(yè)參與國際競爭的難度進(jìn)一步加大，而衡量化工企業(yè)參與國際競爭的難度的一個(gè)最直接的指標(biāo)就是化工企業(yè)產(chǎn)品和服務(wù)的外貿(mào)競爭力。
4. It's difficult to find direct indexing in a sentence. 用direct indexing造句挺難的