String functions  System functions

Chapter 2: Transact-SQL Functions

Limits on string functions

Results of string functions are limited to 16K. This limit is independent of the server’s page size. In Transact-SQL string functions and string variables, literals can be as large as 16K even on a 2K page size.

If set string_rtruncation is on, a user receives an error if an insert or update truncates a character string. However, Adaptive Server does not report an error if a displayed string is truncated. For example:

select replicate("a", 16383) + replicate("B", 4000)

This shows that the total length would be 20383, but the result string is restricted to 16K.





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