dc/docs.datacontroller.io
6
1
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

docs(validations): document how each rule treats a special missing value #8

Open
hermes wants to merge 4 commits from docs/special-missing-rule-behaviour into main
pull from: docs/special-missing-rule-behaviour
merge into: :main
Conversation 0 Commits 4 Files Changed 1
+3 -3
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit abf01d6375 - Show all commits
docs/dcc-validations.md
+3 -3
View File
@@ -59,11 +59,11 @@ The rules treat a special missing as a value for some checks and as a missing va
|CASE|Not applicable - it is a character rule.|
|ROUND|Ignored - ROUND only rounds values that are numbers, so a special missing is left as typed.|
|HARDREGEX / SOFTREGEX|Checked against the pattern like any other value. Unlike blanks and the plain `.`, special missings are **not** exempt. See [Regex Rules](#regex-rules).|
|SOFTSELECT|Passes - a soft dropdown never blocks a value.|
|HARDSELECT|Checked against the dropdown list like any other value - it passes only if the list contains it.|
|SOFTSELECT|Supports special missings - a soft dropdown never blocks a value.|
|HARDSELECT|Supports special missings - the value is matched against the dropdown list like any other value.|
|HARDFORMULA / SOFTFORMULA|The formula returns `#VALUE!` for that row instead of a number, and that is what gets submitted.|
In short, a special missing is **not supported** in a column that carries NOTNULL, MINVAL, MAXVAL or a formula. It is fine alongside the regex rules, a soft dropdown, and ROUND.
In short, a special missing is **not supported** in a column that carries NOTNULL, MINVAL, MAXVAL or a formula. It is fine alongside the regex rules, the dropdowns, and ROUND.
A primary key column is treated as NOT NULL whether or not the target table carries a physical constraint, and whether or not MPE_VALIDATIONS has a NOTNULL rule for it - a key identifies the row, so a blank and a special missing are both rejected there.