Your system has been upgraded from Oracle Database 10g to Oracle Database 11g. You imported SQL Tuning Sets (STS) from the previous version. After changing the OPTIMIZER_FEATURE_ENABLE parameter to 10.2.0.4 and running the SQL Performance Analyzer, you observed performance regression for a few SQL statements. What would you do with these SQL statements?()
You have created an Oracle 10g database named SALES, which will be used by an application named SalesOrders. Users of the SalesOrders application complain that application response time is slow when they generate reports. The SalesOrders application accesses a table that contains 10 million rows. You decide to create an index on this table using the NOLOGGING option so that the index creation process is completed in the least amount of time. Which of the following is NOT true about an index created with the NOLOGGING option?()
下列是关于水泥稳定碎石基层材料配合比设计试件养生的说法: ①养生温度为南方25+2℃,北方20+2℃; ②养生龄期都是6天; ③养生期间试件的质量损失不超过10g; ④第7天,应将试件浸泡在水中1天。 其中表示正确的是()。
You are working on an Oracle Database 10g database. You enabled the Flashback Database feature. Which two statements regarding flashback logs are true? ()
You are working on Oracle Database 10g, which is in ARCHIVELOG mode. All the archived log files are intact. In which scenario would performing a recovery require the opening of the database with the RESETLOGS option?()
In an Oracle 10g database, the in-memory statistics are gathered at regular intervals and used to perform growth-trend analysis and capacity planning of the database. Which component stores these statistics?()
柠檬酸发酵生产的必要条件包含糖源浓度高:120-250g/L;磷酸盐浓度低:0.2-1.0g/L。
You administer an Oracle Database 10g and a third-party database. You use Recovery Manager (RMAN) to perform backup and recovery operations. You have configured a recovery catalog to act as an RMAN repository. To which of the following databases can you NOT connect using the RMAN CONNECT command?()
某施工单位承接了一项传输系统工程。在甲乙两地间新建1条直埋光缆和1个32×10G的DWDM系统。其中A站安装设备包括电源柜.ODF架和DWDM设备各1架,安装平面位置见图1 工程初验前,建设单位要求对光缆路由进行调整,需增设标石如下:标石B后增加1个监测标石B1,标石C后增加1个直线标石C1,标石E后增加1个接头标石E1,已埋设的标石标识见图2 测试OTU光接收灵敏度及过载光功率时,测试人员按图3连接了设备和仪表 本项目光缆中继段测试需要配备哪些仪表?
取土样,装入10g重铝盒中,称其质量为50g,放入烘箱烘干后质量为40g,则土壤质量含水率为()。