4.4.1.9. Placeholder search *

If only parts of a chain of numbers, letters or combined numbers and letters are known, you can use the wildcard search. The section you are looking for can occur anywhere.

Example:

With

*CH55*

is found, for example, A CH55 0-BCR-046A-2.

  • Whether the unknown places occur at the beginning, end or in the middle is irrelevant. The number of placeholders used is also arbitrary.[7]

    1SF*7102R7000

    1SFA8*102R*000

  • In V11, individual positions could be replaced with the placeholder (?). Although this placeholder also works in V12, the placeholder (*) is simpler and more flexible, as it can stand for none, one or more characters.

    1SFA8?
    ?102R?000

  • If the unknown section is delimited by spaces, separators such as periods or characters of a different type (numeric/alphanumeric), the placeholder is not required.

  • Alphanumeric search:

    Terms are broken down into meaningful partial terms (partial strings according to the dictionary) by default.

    With table you can also find table top without using the placeholder *.

    However, you cannot find what you are looking for with Tisc. In this case, you must use the wildcard search and search with Tisc *.

  • Numerical search:

    123 * 567 *

  • No stemming is used for a wildcard search.[8] is executed. * screw only finds screw and not screw. If you want to find both, you must specify *chraube*.

  • A wildcard search is always associated with a certain loss of performance. However, it depends on how many hits there are. For example, a search for s* is significantly slower than a search for *screw. If a search for s* is carried out across a large number of catalogs, it can happen that the PARTapplicationServer aborts the search because it would cost too much performance. In this case, an error message such as: Placeholder search too general. Restrict the search further by entering additional letters or numbers. [Wildcard search too general. Narrow down the search by specifying additional letters or numbers.]




[7] In V11, the wildcard (*) could only be used at the beginning or end of a search string.

[8] stem form reduction, normal form reduction of languages, e.g. singular and plural