To avoid reserved word conflicts, all users on the server must invoke the quoted_identifier option in all stored procedures and queries that include the reserved words.
To invoke the quoted_identifier option of the set command in procedures and queries that include the reserved words, enclose the reserved words that are identifiers in double quotation marks. The set quoted_identifier option tells SAP ASE to treat any character string enclosed in double quotation marks as an identifier.
See Reference Manual: Commands for more information on set quoted_identifier.