As mentioned in#179, the guideline is too strict IMO. SonarSource defines a similar ruleplsql:S1192 - String literals should not be duplicated. For this rule athreshold can be defined as parameter.

I like the idea of using parameters in rules. This concept can be applied in various rules (for example to configure the prefix and suffix for naming conventions).

We should start to introduce the the concept of parameters in the guidelines. In this case athreshold with the meaningNumber of times a literals must be duplicated to trigger an issue. The default will be0 will be identical to the current behavior. The db* CODECOP tool suite needs to be enhanced to support this threshold. This gives the users a better option than disabling to complete guideline.