June 2018
Intermediate to advanced
478 pages
10h 52m
English
Content preview from IBM Db2 11.1 Certification Guide
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DB2 utilities comparison – Import vs. Ingest vs. Load
The following table summarizes key differences between Ingest, Import, and Load utilities:
|
Attribute
|
Import
|
Ingest
|
Load
|
|
Speed |
Slow: uses sequential insert statements |
Fast: uses parallel insert threads |
Very fast: writes formatted pages directly into table space containers |
|
Concurrency |
High: sometimes escalates to table-level lock |
Very high: row-level locking |
Low: allows read-only operations |
|
Transaction logging |
Every record change is logged |
Every record change is logged |
Very minimal logging |
|
Behavior on failure |
Rollback, and table is accessible |
Rollback, and table is accessible |
Table will remain in Load Pending state |
|
LOBs and XML data |
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