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第一章:日志管理 1.forcing log switches sql> alter system switch logfile; 2.forcing checkpoints sql> alter system checkpoint; 3.adding online redo log groups sql> alter database add logfile [group 4] sql> ('/disk3/log4a.rdo ','/disk4/log4b.rdo')
包含690个必读词汇,对考试大有裨益@ 1. alter v. 改变,改动,变更 2.burst vi.,n. 突然发生,爆裂 3.dispose vi. 除掉;处置;解决;处理(of) 4.blast n. 爆炸;气流 vi. 炸,炸掉 5.consume v. 消耗,耗尽 6.split v. 劈开;割裂;分裂 a.裂开的 7.spit v. 吐(唾液等);唾弃 8.spill v. 溢出,溅出,倒出 9.slip v. 滑动,滑落;忽略 10.slide v. 滑动,滑落 n. 滑动;滑
新四级冲刺需牢记的700核心词 1. alter v. 改变,改动,变更 2. burst vi. n. 突然发生,爆裂 3. dispose vi. 除掉;处置;解决;处理(of) 4. blast n. 爆炸;气流 vi. 炸,炸掉 5. consume v. 消耗,耗尽 6. split v. 劈开;割裂;分裂 a.裂开的 7. spit v. 吐(唾液等);唾弃 8. spill v. 溢出,溅出,倒出 9. slip v. 滑动,滑落;忽略 10. slide v. 滑动,滑落 n.
第一章:日志管理 1.forcing log switches sql> alter system switch logfile; 2.forcing checkpoints sql> alter system checkpoint; 3.adding online redo log groups sql> alter database add logfile [group 4] sql> ('/disk3/log4a.rdo ','/disk4/log4b.rdo')
学生成绩管理系统源代码if exists(select 1 from sys.sysforeignkey where role='FK_CHOOSE_C_CHOOSE_CO_COURSES') then alter table choose_course delete foreign key FK_CHOOSE_C_CHOOSE_CO_COURSES end if; if exists(select 1 from sys.sysforeignkey where role='FK_CHOOSE_