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Table Of Contents
Oracle GoldenGate 11g Implementer's guide
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In Chapter 4, Configuring Oracle GoldenGate you performed data replication with identical source and target tables. You'll remember that the GoldenGate Replicat parameter ASSUMETARGETDEFS defines this. In the real world, it is unlikely that your target tables will be exactly the same as the source, having some additional columns or maybe different datatypes. You may even wish to transform the data, or omit certain rows from being replicated.
With GoldenGate, it is possible to map and transform your column data using the
TABLE parameter in an Extract's configuration, or the MAP parameter for a Replicat.
Due to the length of some of the multi-line parameter statements, an ampersand character (&) is required as a "continuation" character at the end of each line.
When changing Extract or Replicat process parameters, be sure to stop and start the process to allow the new configuration to be read into memory. This requirement is not to be confused with zero downtime migrations...
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