Using Caché Objects - InterSystems Documentation

Indices
It collates any value containing only whitespace (spaces, tabs, and so on) as the SQL
empty string.
There are also a set of legacy collation types. These are not recommended for use with new
code, as they are provide continued support for legacy systems. They are:
• ALPHAUP — Removes all punctuation characters except question marks ( “” ) and
commas ( “,” ), and translates all the lowercase letters to uppercase. Used mostly for
mapping legacy globals.
• MINUS — Makes the value numeric and changes its sign.
• PLUS — Makes the value numeric.
• SPACE — Translates the value into a string. Replaced by SQLSTRING.
• STRING — Converts a logical value to upper case, strips all punctuation and white space
(except for commas), and adds one leading blank space to the beginning of the string. It
collates any value containing only whitespace (spaces, tabs, and so on) as the SQL empty
string. Replaced by SQLUPPER.
• UPPER — Translates all lower case letters into upper case letters. Used mostly for
mapping legacy globals — replaced by SQLUPPER.
66 Using Caché Objects