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Referential Integrity

Due to an RUOW constraint,CA 2E does not generate CONNECT statements prior to referential integrity checks and therefore validates relations on the RDB to which the user is currently connected. The i OS is unable to switch connections to another RDB in the middle of an SQL FETCH routine. This is fully consistent with the RUOW assumptions that each RUOW is constrained to a single RDB. If a user attempts to switch to another RDB in the middle of a SQL FETCH loop, DRDA closes all cursors and the application fails.