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Download Informix CLI Programmer`s Manual, Version 2.5
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SQLDescribeCol Type Argument Use Description UDWORD FAR * pcbColDef Output The precision of the column on the data source. If the precision cannot be determined, the driver returns 0. For more information on precision, see “Precision, Scale, Length, and Display Size” on page C-8. SWORD FAR * pibScale Output The scale of the column on the data source. If the scale cannot be determined or is not applicable, the driver returns 0. For more information on scale, see “Precision, Scale, Length, and Display Size” on page C-8. SWORD FAR * pfNullable Output Indicates whether the column allows one of the following values: SQL_NO_NULLS: The column does not allow NULL values. SQL_NULLABLE: The column allows NULL values. SQL_NULLABLE_UNKNOWN: The driver cannot determine if the column allows NULL values. (3 of 3) Return Codes SQL_SUCCESS, SQL_SUCCESS_WITH_INFO, SQL_STILL_EXECUTING, SQL_ERROR, or SQL_INVALID_HANDLE INFORMIX-CLI Function Reference 13-87
