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# Data Update Functions

Note: The functions for multiple connections have been deprecated.

These functions change the data in fields.

lrvtc.vtcRetrieveMessages1 and lrvtc.vtcRetrieveRow change data as a side effect of popping data from the first row. They change data by shifting data up by a row.

C Language | C# Language | Java Language | Description
--- | --- | --- | ---
vtc.clearColumn | vts_multi.clear_column | Vtc. | Clears all data in a column.
vtc.clearMessage | vts_multi.clear_message | Vtc. | Clears the data in a field.
vtc.clearRow | vts_multi.clear_row | Vtc.clear_row | Clears the data in a row.
vtc.increment | vts_multi.increment | Vtc.increment | Increments a counter stored in a field.
vtc.retrieveMessage | vts_multi.retrieve_message | Vtc.retrieve_message | Pops the first field from a column.
vtc.retrieveMessages1 | vts_multi.retrieve_messages | Vtc.retrieve_messages | Pops the first fields from specified columns.
vtc.retrieveRow | vts_multi.retrieve_row | Vtc.retrieve_row | Pops the first fields from all columns.
vtc.sendIfUnique | vts_multi.send_if_unique | Vtc.send_if_unique | Sets the last field of a column to a value if the value does not exist in the column.
vtc.sendMessage | vts_multi.send_message | Vtc.send_message | Sets the last field of a column to a value.
vtc.sendRow1 | vts_multi.send_row1 | Vtc.send_row1 | Sets the data in multiple columns.
vtc.updateMessage | vts_multi.update_message | Vtc.update_message | replaces the data in a field.
vtc.updateMessageIfequals | vts_multi.update_message_ifequals | Vtc.update_message_ifequals | replaces the data in a field if the current data equals a given value.
vtc.updateRow1 | vts_multi.update_row | Vtc.update_row | replaces the data in a row.

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