Setting Isolation Levels

SourcePro : DB Access Module for DB2 CLI User’s Guide : Technical Information : Transaction Processing : Setting Isolation Levels

You can use the isolation() method of RWDBConnection to set the isolation level of your connection. Table 5 shows the mapping between the IsolationType argument you pass, and the isolation level set by the SQLSetConnectAttr() call.

Table 5 – Setting the isolation level
RWDBConnection:: IsolationType	ODBC Isolation Level	IBM Isolation Level
Unknown	SQL_TXN_READ_UNCOMMITTED	Uncommitted Read
ANSILevel1	SQL_TXN_READ_COMMITTED	Cursor Stability
ANSILevel2	SQL_TXN_REPEATABLE_READ	Read Stability
ANSILevel3	SQL_TXN_SERIALIZABLE	Repeatable Read

To determine the current isolation level, call RWDBConnection::isolation() without an argument.