The sole purpose of these filters are to allow operations with template elements that naturally start with the underscore ('_') character.

Some examples of identifiers: with the additional constraint that a single underscore character is not an identifier. Note: Identifiers starting with an underscore are typically used to indicate an ...

A simple description of the use of the LIKE pattern is that the pattern is used to specify the conformance criteria for values in the match-expression where: If the pattern-expression needs to include ...