Correlated subqueries will greatly degrade the speed of data retrieval, especially for non-selective queries on huge tables with millions of rows and with no index.
相关子查询将极大地降低数据检索的速度,对于拥有几百万个行但没有索引的大型表的非选择性查询更是如此。
Methods A non-selective feeding trial was conducted using 0.025% warfarin and 0.005% bromadiolone baits.
方法用0.025%杀鼠灵毒饵和0.005%溴敌隆毒饵进行无选择性摄食试验。
Chemistry shuts off the water includes the selective water plugging and the non-selective water plugging.
化学堵水又包括选择性堵水和非选择性堵水。
Therapeutic responses to prednisone were significantly different between the selective and non-selective proteinuria groups (P<0.02);
选择性蛋白尿者激素治疗效果明显优于非选择性蛋白尿者(P<0.02)。
Sweden, admired by Mr Gove for its independent, non-selective, state-funded Free Schools, has had a sticky period in international rankings.
以拥有具有独立性、非选拔性以及公费性的自由学校而受到佳夫先生赏识的瑞典在国际排名上经历了一段艰难的时期。
The P2X7 receptor isn't investigated in this study because it is functionally unique among P2X receptors in being able to act as a non-selective pore.
由于P2X7受体功能比较特异,可以作为非选择性通道,故本实验没有对P2X7受体的表达进行研究。
This article gives a review of the recent advancement in clinical application of non-selective and selective ET receptor antagonists in the treatment of pulmonary hypertension.
本文综述近年来非选择性ET受体拮抗剂和选择性ETA受体拮抗剂治疗肺动脉高压的临床应用进展。
Objective To evaluate the inhibiting effect of selective and non-selective cyclo-oxygenase-2(COX-2) inhibitor on growth of colon cancer cell lines in vitro and its signal transduction pathway.
目的探讨选择性及非选择性环氧合酶-2抑制剂(COX-2)对体外培养的结肠癌细胞生长的影响及其作用的信号传导通路。
Most of the TRP channels are voltage independent and non selective cation channels.
绝大多数TRP离子通道为非电压依赖性、非选择性阳离子通道。
The selective leakage protective system can give out alarming signal or cut off the fault branches selectively when the leakage fault happens, and the non-fault branches are working normally.
选择性漏电保护是指当电网发生漏电故障时,能够有选择地发出故障信号或切断故障支路电源,而非故障部分继续工作。
When non-noble metal catalysts are selected for selective hydrogenation of diolefin, full-range FCC gasoline hydrogenation process is preferred.
当选用非贵金属催化剂时,二烯烃选择性加氢单元应优先采用催化裂化全馏分加氢流程;
The table is logically joined to itself, and the more selective non-leading index keys are applied as index bound filters to each unique combination of the leading key values.
首先在逻辑上将表与其自身连接,然后将更具有选择性的非起始索引键作为索引绑定过滤器,应用于起始键值的每个惟一的组合。
Objective To research the therapeutic effect for non-carcinomas hemoptysis by selective and super-selective embolization of bleeding arteries.
目的探讨选择性与超选择性栓塞支气管动脉等出血血管对内科治疗疗效不佳的非癌性咯血的治疗作用。
College writing is a basic course for Chinese majors as well as a selective one for non-Chinese majors in higher schools.
大学写作是高校中文专业的一门基础课,也是其他专业的一门选修课。
This paper puts forward some measures for reforming the teaching of selective courses of the computer for the non-computer specialities.
从教学内容、教学方法、考核方式等方面提出了非计算机专业计算机选修课教学改革的措施。
A novel iterative algorithm for optimization design of non-frequency-selective FIR digital filters is proposed based on the windowing method.
提出一种基于窗函数法设计FIR数字滤波器的优化算法。
Conclusion Selective renal arterial embolization has greater value in non - surgery treatments of RAML.
结论选择性肾动脉栓塞术在RAML的非手术治疗中具有较高的应用价值。
Conclusion Selective renal arterial embolization has greater value in non - surgery treatments of RAML.
结论选择性肾动脉栓塞术在RAML的非手术治疗中具有较高的应用价值。
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