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getRecord will have the same functionality as the CHAIN operation code in RPG. You may also use 'file.chain()' with the same parameters as this method.
Parameters
- Array of keys or key variable. Get the next record by key. If the file has no keys, it will default to the RRN.
- Boolean noLock. If true, no lock will be created.
- String recordName. Record format name.
- (Optional) Data strucutre. If a DS is passed in, the recieved buffer from the file will be placed into the specified DS.
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