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Question 46/90
Your X6 Exadata Database Machine is running Oracle Database 12c, and has a large database with some very large tables supporting OLTP workloads.
High-volume insert applications and high-volume update workloads access the same tables.
You wish to compress these tables without causing unacceptable performance overheads to the OLTP workload.
Which three are true regarding this requirement?
High-volume insert applications and high-volume update workloads access the same tables.
You wish to compress these tables without causing unacceptable performance overheads to the OLTP workload.
Which three are true regarding this requirement?
Correct Answer: A,B,D
Explanation/Reference:
A: Creating a Table with Advanced Row Compression
The following example enables advanced row compression on the table orders:
CREATE TABLE orders ... ROW STORE COMPRESS ADVANCED;
B: ARCHIVE LOW compression (Exadata only), recommended for Archival Data with Load Time as a critical factor
Incorrect Answers:
E: QUERY LOW compression (Exadata only), recommended for Data Warehouse with Load Time as a critical factor.
References: https://docs.oracle.com/database/121/ADMIN/tables.htm#ADMIN015
https://uhesse.com/2011/01/21/exadata-part-iii-compression/
A: Creating a Table with Advanced Row Compression
The following example enables advanced row compression on the table orders:
CREATE TABLE orders ... ROW STORE COMPRESS ADVANCED;
B: ARCHIVE LOW compression (Exadata only), recommended for Archival Data with Load Time as a critical factor
Incorrect Answers:
E: QUERY LOW compression (Exadata only), recommended for Data Warehouse with Load Time as a critical factor.
References: https://docs.oracle.com/database/121/ADMIN/tables.htm#ADMIN015
https://uhesse.com/2011/01/21/exadata-part-iii-compression/
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