“海水西调”设想提出后遭多方争议,试从地质、水文、土壤等方面分析质疑理由。
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Your are the DBA supporting an Oracle 11g Release 2 database and wish to move a table containing several DATE, CHAR, VARCHAR2, and NUMBER data types, and the table’s indexes, to another tablespace. The table does not have a primary key and is used by an OLTP application. Which technique will move the table and indexes while maintaining the highest level of availability to the application?()
A. Oracle Data Pump.
B. An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD to move the indexes.
C. An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD ONLINE to move the indexes.
D. Online Table Redefinition.
Edition-Based Table Redefinition.
塔上人员作业在操作前()系好安全带。
A. 必须
B. 可以
C. 系不系都可以
D. 不用
重力坝的纵缝和横缝为临时缝,其他缝一般为永久缝,主要配合施工需要设置。
A. 正确
B. 错误
对于肾功能减退的患者应避免使用,确有应用指征者需要调整给药剂量的药物为()
A. 氨基糖苷类抗生素
B. 青霉素类
C. 大环内酯类抗生素
D. 利福平
E. 头孢唑啉