JavaScript Functions > Virtual Table Server Functions for Single Connection (lrvtc) > Data Update Functions

Data Update Functions

These functions change the data in fields.

lrvtc.retrieve_messages1 and lrvtc.retrieve_row change data as a side effect of popping data from the first row. They change data by shifting data up by a row. lrvtc.rotate* functions move data from the top to the bottom of the table.

Function Description
lrvtc.clearColumn Clears all data in a column.
lrvtc.clearMessage Clears the data in a field.
lrvtc.clearRow Clears the data in a row.
lrvtc.increment Increments a counter stored in a field.
lrvtc.retrieveMessage Pops the first field from a column.
lrvtc.retrieveMessages1 Pops the first fields from specified columns.
lrvtc.retrieveRow Pops the first fields from all columns.
lrvtc.rotateMessage Retrieves the first field from the specified column and moves the value to the bottom.
lrvtc.rotateMessages1 Retrieves the first field from the specified column and moves the value to the bottom.
lrvtc.rotateRow Retrieves the first row and moves the values to the bottom.
lrvtc.sendIfUnique Sets the last field of a column to a value if the value does not exist in the column.
lrvtc.sendMessage Sets the last field of a column to a value.
lrvtc.sendRow1 Sets the data in multiple columns.
lrvtc.updateMessage Replaces the data in a field.
lrvtc.updateMessageIfequals Replaces the data in a field if the current data equals a given value.
lrvtc.updateRow1 Replaces the data in a row.