Variable Creation - INPUT - Literal Parameters - Teradata Warehouse Miner

Teradata® Warehouse Miner™ User Guide - Volume 2ADS Generation

Teradata Warehouse Miner
Release Number
November 2018
English (United States)
Last Update
Product Category
  1. On the Variable Creation dialog, click on INPUT.
  2. Click on literal parameters:
    Variable Creation > Input > Literal Parameters

  3. On this screen, select:
    • Target Date — If a Target Date was used when creating a variable, dimension, or expert clause, it can be set here. The default value is the current date, and can be changed by either typing in another date, entering month, day and year separately, or by selecting a date with the standard Windows calendar control (reached by selecting the down arrow on the selector).
    • Literal Parameters — Literal parameters may be defined or updated on this screen, including parameters of type string, numeric, date, time and timestamp, as well as a text type that receives no formatting and is used “as-is”. String parameters are automatically quoted and date, time and timestamp parameters have the appropriate identifying keyword added automatically. For example, the parameter p1 shown above is converted to DATE ‘2008-03-04’in the generated SQL.

      Note that literal values are entered in a format consistent with the workstation’s current locale setting, yet appear in the generated SQL in an invariant format. Also, string parameters that may contain more than one embedded quote should be entered as a quoted text parameter with each embedded quote repeated. For a more complete description of each type of literal parameter, see Variable Creation - INPUT - Variables - SQL Elements.

      The following options are available:
      • The Add option can be used to add a literal parameter to the analysis. A default name consisting of the letter ‘p’ followed by an integer will automatically be assigned. The default name can be changed by the user after clicking on Properties.
        A menu with available types is displayed, including:
        • Date
        • Numeric
        • String
        • Text
        • Time
        • Timestamp
      • The Remove option can be used to remove a literal parameter from the analysis, but only if the parameter is not currently in use in the definition of a variable, dimension, applied dimension or expert clause (in which case the button is grayed out).
      • The Properties option can be used to change the Name, Value and/or Description if desired.