User-defined function (UDF) support differs between Adaptive Server Enterprise, SQL Anywhere, and SAP Sybase IQ:
SQL Anywhere supports UDFs in SQL, Java, and C.
Adaptive Server Enterprise supports UDFs written only in Java .
SAP Sybase IQ offers support for external C/C++ and Java UDFs as a licensed option. SAP Sybase IQ offers support for Interactive SQL UDFs via CIS query decomposition, but there are performance implications.