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   colName as String
) as columnIdentifier


This method identifies a column, where the column name is unique. A qualifier on the column name isn't necessary (and might not exist). In positions where only a column name can appear, the unqualified column name can also be provided as a string. Qualified column names cannot be provided as a string.

colName The name of the column.

Usage Notes

col is a method of the AccessPlan class.


// Calculate the total expenses for each employee and return results in order of employee number.

const op = require('/MarkLogic/optic');

const employees = op.fromView('main', 'employees');
const expenses = op.fromView('main', 'expenses');
const totalexpenses  = op.col('totalexpenses');
const Plan =
employees.joinInner(expenses, op.on(employees.col('EmployeeID'), expenses.col('EmployeeID')))
   .groupBy(employees.col('EmployeeID'), ['FirstName', 'LastName', expenses.col('Category'),
    op.sum(totalexpenses, expenses.col('Amount'))])


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