Returns the specified table column or null if the column does not exist. When columnName is a valid Java name,
the column can more easily be accessed as tableName.columnName e.g. T1.COL1, however use
of this method is the only way to access column names that are not valid Java names.
columnNameis a valid Java name, the column can more easily be accessed astableName.columnNamee.g.T1.COL1, however use of this method is the only way to access column names that are not valid Java names.Javascript example:
var col = tables.ORDERS.getColumn("2XX");