H13-921_V1.5 Exam Dumps - HCIP-GaussDB-OLTP V1.5

Application statistics

Operating system statistics

Network statistics

Database statistics

Global: affects entire statement

Query block: affects a specific query block

Table-level: affects a table in a block

Index-level: affects an index in a table

True

False

After standby is promoted to primary

After manage-vip is successfully bound

After manage-vip is successfully unbound

After data-vip is successfully bound

Support distributed deadlock prevention

Support global transaction info management

Distributed transactions support ACID properties

gs_clean cleans up residual transactions automatically

Questionnaire survey

Interviews with business personnel

Sample data collection and analysis

Review “User Requirements Specification”

Space from deleted rows is physically released back to the OS

Allows concurrent operations during execution

Should be run only when disk space usage nears a threshold

Improves all operations based on the table after execution

Different engines provide different mechanisms, indexes, lock levels, etc.

Storage engine is the DBMS’s bottom layer software responsible for creation, queries, updates

Storage engine determines data access mode, directly affecting read/write performance

Each storage engine has unique formats, scenarios, and limitations