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Which statements are true about checkpointing（）
- A、The checkpoint frequency decreases with the smaller redo log file size.
- B、It ensures that all committed data is written to the data files during normal shutdown.
- C、The frequent full checkpoint in a database can cause the overall degradation of the database performance.
- D、It prompts the Checkpoint （CKPT） process to write data to the data files and redo information to the onlineredo log files
参考答案
更多 “Which statements are true about checkpointing（）A、The checkpoint frequency decreases with the smaller redo log file size.B、It ensures that all committed data is written to the data files during normal shutdown.C、The frequent full checkpoint in a database can cause the overall degradation of the database performance.D、It prompts the Checkpoint （CKPT） process to write data to the data files and redo information to the onlineredo log files” 相关考题
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B.Matching.
C.Gapfilling.
D.Labeling.
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Defining.B
Matching.C
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DESD
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单选题Which statement is true regarding the INTERSECT operator?（）A
It ignores NULL values B
Reversing the order of the intersected tables alters the result C
The names of columns in all SELECT statements must be identical D
The number of columns and data types must be identical for all SELECT statements in the query
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单选题Which component does the SQL Tuning Advisor NOT analyze for the SQL statements？（）A
ADDMB
AWRC
Cursor CacheD
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单选题Which of the following statements is true regarding the VERSIONS BETWEEN clause？（）A
The VERSIONS BETWEEN clause may be used in DML statements.B
The VERSIONS BETWEEN clause may be used in DDL statements.C
The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D
The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.
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