CODBCFieldInfo Structure
The CODBCFieldInfo structure contains information about the fields in an ODBC data source.
struct CODBCFieldInfo
{
CString m_strName;
SWORD m_nSQLType;
UDWORD m_nPrecision;
SWORD m_nScale;
SWORD m_nNullability;
};
Parameters
m_strName
The name of the field.m_nSQLType
The SQL data type of the field. This can be an ODBC SQL data type or a driver-specific SQL data type. For a list of valid ODBC SQL data types, see "SQL Data Types" in the Windows SDK. For information about driver-specific SQL data types, see the driver's documentation.m_nPrecision
The maximum precision of the field. For details, see "Precision, Scale, Length, and Display Size" in the Windows SDK.m_nScale
The scale of the field. For details, see "Precision, Scale, Length, and Display Size" in the Windows SDK.m_nNullability
Whether the field accepts a Null value. This can be one of two values: SQL_NULLABLE if the field accepts Null values, or SQL_NO_NULLS if the field does not accept Null values.
Remarks
To retrieve this information, call CRecordset::GetODBCFieldInfo.
Requirements
Header: afxdb.h