INF: SQLState 22002 Error When Fetching Results (158618)
The information in this article applies to:
- Microsoft ODBC SDK 2.5
- Microsoft ODBC Driver for SQL Server 2.5
- Microsoft ODBC Driver for SQL Server 2.65
This article was previously published under Q158618 SUMMARY
While fetching results using ODBC SQL Server driver, you may occasionally
see the following error message:
SQLState 22002: Indicator variable required but not supplied
This error message is not documented in either the SQL Server driver Help
file or the ODBC 2.5 SDK specification document Readme25.txt that ships
with the ODBC Desktop Driver Pack 3.0.
MORE INFORMATION
The problem is a documentation bug with the ODBC 2.5 SDK for the SQL State
22002 on SQLFetch. The SQL Server driver follows the ODBC SDK 2.5
specification and returns the error message correctly, as described in the
specification.
According to the ODBC 2.5 specification, the driver should return error
22002 on SQLFetch when the data fetched in the particular column is NULL
and the SQLBindCol function did not specify a valid pointer for the
pcbValue parameter (indicator variable). This is because the driver returns
SQL_NULL_DATA in the pcbValue parameter when the data fetched for a
particular column is NULL. When the pcbValue is specified as a NULL pointer
in your application, the driver raises the correct error message according
to the specification.
NOTE: It is generally a good programming practice to specify valid pointers
to the pcbValue parameter.
| Modification Type: | Major | Last Reviewed: | 10/15/2003 |
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| Keywords: | KB158618 |
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