制定《社会保险法》，是为了规范社会保险关系，维护公民参加社会保险和享受社会保险待遇的合法权益，使公民共享发展成果，促进社会和谐稳定。
Which two statements are true about checkpointing（） The checkpoint frequency decreases with the smaller redo log file size.。 It ensures that all committed data is written to the data files during normal shutdown.。 The frequent full checkpoint in a database can cause the overall degradation of the database performance.。 It prompts the Checkpoint （CKPT） process to write data to the data files and redo information to the online redo log files.。
注水系统的地漏全都排在（） 开式排放系统。 闭式排放系统。 主甲板。
You lost the index tablespace in your database. You decided to re-create the index tablespace and the indexes in the tablespace. What methods can you use to re-create the indexes？（） SQL scripts。 Recovery Manager （RMAN） script。 Data Pump。 SQL*Loader。 Flashback database。
在轴瓦上浇注巴氏合金之前，一般要先（），这样可使轴瓦与巴氏合金粘合（）。
Which is the source used by Automatic SQL Tuning that runs as part of the AUTOTASK framework？（）
