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The LONG VARCHAR data type stores character data of arbitrary length.
The maximum size is 2 GB.
Multibyte characters can be stored as LONG VARCHAR, but the length is in bytes, not characters.
Large object support is SQL language feature T041 of the SQL/2008 standard. The use of LONG NVARCHAR to declare a national
character string of up to 2GB in SQL Anywhere is a vendor extension.