You started a long transaction. Before committing， you executed a query on one of the tables currently being modified. You received the following error： ORA-01555： snapshot too old How would you prevent such an error in the future？（） guarantee undo retention。 add one more redo log group。 size the redo log files appropriately。 size the UNDO tablespace appropriately。 size the SYSTEM tablespace appropriately。 configure an appropriate undo retention interval。 change automatic undo management to manual。
客观评价法
Which storage system is this statement describing: A high-end, disk storage system with a virtualized grid architecture designed to eliminate the complexity of storage administration and make managing storage easy.（） XIV system。 SONAS。 DS8800。 N serie。
A customer wants to add a new application to their existing IBM System Storage DS5300. Theyexpect that the new application will require a minimum of 15，000 additional IOPS. What toolshould be used to determine what additional disk is required to effectively add the newapplication？（） eConfig。 Disk Magic。 Capacity Magic。 Tivoli Storage Productivity Center for Data。
某厂一站循环流化床点火方式是（），二站循环流化床锅炉点火方式是（），点火过程中温升速度需要（），全过程控制时间一般为（）。床温达到（）时可以投煤。
Which command would you use to determine what database backups are currently available for restore？（）
