Online Access Free H13-921_V1.5 Exam Questions

FETCH retrieves the current cursor row and moves to the next. If already at last row, overflow occurs.

• A.True
• B.False

The frequency of flushing logs from the buffer to disk is related to the parameter innodb_flush_log_at_trx_commit. Which value means "write log buffer data to log file and flush to disk every second"?

• A.3
• B.2
• C.1

Horizontal partitioning always improves query performance.

• A.True
• B.False

Trigger events specify the statements that activate triggers. Which are included?

• A.CREATE
• B.UPDATE
• C.DELETE
• D.INSERT

When creating a GaussDB (for MySQL) instance, the system automatically creates system accounts (usable by users) to support backend O&M. Which are these accounts?

• A.rdsBackup
• B.rdsRepl
• C.rdsAdmin
• D.rdsMetric