In which scenario will you perform an incomplete recovery？（） when a table is dropped and stored in the Recycle Bin。 when all the control files are deleted。 when a member of a multiplexed redo log group is dropped。 when you are required to recover a table to its previous state。
资格预审申请文件格式中，“申请人基本情况表”、“原件的复印件”要求申请人如实反映申请人资质条件，申请人应按照要求（）资质等级证书副本复印件，有原件要求的提交原件。 填写。 提交。 填写或者提交。 填写并提交。
The CUSTOMERS table has these columns: The CUSTOMER_ID column is the primary key for the table.Which two statements find the number of customers? （） SELECT TOTAL(*) FROM customers;。 SELECT COUNT(*) FROM customers;。 SELECT TOTAL(customer_id) FROM customers;。 SELECT COUNT(customer_id) FROM customers;。 SELECT COUNT(customers) FROM customers;。 SELECT TOTAL(customer_name) FROM customer。
桥式吊车的吊钩，其磨损面的磨损量超过断面的（）应降负荷使用。 30%。 20%。 10%。
The DB_BLOCK_CHECKING initialization parameter is set to OFF. 数据库块检测初始化参数被设定为关 Which block checking would be performed?（） The Oracle database will perform block checking for the index blocks only 。 The Oracle database will not perform block checking for any of the data blocks 。 The Oracle database will perform block checking for the default permanent tablespace only 。 The Oracle database will perform block checking for the data blocks in all user tablespaces 。 The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only Oracle。
领导的生命周期理论是一个三维结构的领导效率模型，三个维度是（）
