OLD

note

This article has additional information about the OLD SQL function. For convertibility of this function, go to SQL functions  N - R.

OLD

The OLD() SQL function is a USoft-specific extension of the SQL language. It is handled on all platforms by the USoft Rules Engine itself and thus portable across platforms.

This function must be passed exactly 1 argument, which must identify a column:

OLD( *column* )

warning

This function is legal only in the context of constraint SQL (for both table constraints and domain constraints).

tip

Go to Transitional constraints to find out how the OLD function is used.