The DB2 driver supports the isolation levels listed in the following table. JDBC isolation levels are mapped to the appropriate DB2 transaction isolation levels as shown. The default isolation level is Read Committed.

Table 1. Supported Isolation Levels
JDBC Isolation Level DB2 Isolation Level
None No Commit 1
Read Committed (default) Cursor Stability
Read UnCommitted Uncommitted Read
Repeatable Read Read Stability
Serializable Repeatable Read
1 Supported for DB2 for i versions that do not enable journaling.