What happens when you run the SQL Tuning Advisor with limited scope?()
Access path analysis is not performed for SQL statements.
B. SQL structure analysis is not performed for SQL statements.
C. SQL Profile recommendations are not generated for SQL statements.
D. Staleness and absence of statistics are not checked for the objects in the SQL Tuning Advisor. In this case, SQL Tuning Advisor produces recommendations based on statistical checks, access path analysis, and SQL structure analysis. SQL profile recommendations are not generated.
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男新兵,18岁,军训后出现足部疼痛,在第二跖骨处出现肿胀并压痛,拍摄X线时见第二跖骨远端有梭形骨膜增生,其最可能是:()
A. 骨样骨病
B. 骨软骨病
C. 软骨病
D. 病理性骨折
E. 疲劳性骨折
城市噪音的来源是()
A. 交通噪音、工业生产噪音
B. 室内噪音、交通噪音、其他噪音
C. 交通噪音、工业生产噪音和建筑施工噪音、其他噪音
D. 建筑施工噪音、交通噪音、机场噪音
E. 建筑施工噪音、火车噪音、机场噪音
所谓气体与气瓶材料的相容性,就是要求所装介质对气瓶材料不产生()及其他化学反应,以免气瓶或附件受到损伤或气体质量受到影响。