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Download Informix CLI Programmer`s Manual, Version 2.5
Transcript
SQLDescribeCol SQLDescribeCol Core SQLDescribeCol returns the result descriptor (column name, type, precision, scale, and nullability) for one column in the result set; it cannot be used to return information about the bookmark column (column 0). Syntax RETCODE SQLDescribeCol(hstmt, icol, szColName, cbColNameMax, pcbColName, pfSqlType, pcbColDef, pibScale, pfNullable) The SQLDescribeCol function accepts the following arguments. Type Argument Use Description HSTMT hstmt Input Statement handle. UWORD icol Input Column number of result data, ordered sequentially left to right, starting at 1. UCHAR FAR * szColName Output Pointer to storage for the column name. If the column is unnamed or the column name cannot be determined, the driver returns an empty string. SWORD cbColNameMax Input Maximum length of the szColName buffer. SWORD FAR * pcbColName Output Total number of bytes (excluding the null-termination byte) available to return in szColName. If the number of bytes available to return is greater than or equal to cbColNameMax, the column name in szColName is truncated to cbColNameMax – 1 bytes. (1 of 3) INFORMIX-CLI Function Reference 13-85
