Attribute

StringDescribeType (SDT)

Purpose

Specifies whether all string columns are described as SQL_VARCHAR. This connection option affects SQL_Columns, SQLDescribeCol, SQLColAttributes, etc.  It does not affect SQLGetTypeInfo.

Valid Values

-10 | -9

Behavior

If set to -10 (SQL_WLONGVARCHAR), all string columns are described as SQL_WLONGVARCHAR.

If set to -9 - (SQL_WVARCHAR), all string columns are described as SQL_WVARCHAR.

Default

-9 - SQL_WVARCHAR

GUI Tab

Advanced tab