Used to return the data values for columns.
typedef struct an_extfn_result_set_column_data { a_sql_uint32 column_index; void * column_data; a_sql_uint32 data_length; short append; } an_extfn_result_set_column_data;
column_index The ordinal position of the column which starts at 1.
column_data Pointer to a buffer containing the column data.
data_length The actual length of the data.
append Used to return the column value in chunks. Set to 1 when returning a partial column value; 0 otherwise.
The following code fragment shows how to set the properties for objects of this type and how to return the result set row to the calling SQL environment.
int DeptNumber = 400; char * DeptName = "Marketing"; col_data[0].column_index = 1; col_data[0].column_data = &DeptNumber; col_data[0].data_length = sizeof( DeptNumber ); col_data[0].append = 0; col_data[1].column_index = 2; col_data[1].column_data = DeptName; col_data[1].data_length = strlen(DeptName); col_data[1].append = 0; extapi->set_value( arg_handle, EXTFN_RESULT_SET_ARG_NUM, (an_extfn_value *)&rs_info, EXTFN_RESULT_SET_NEW_ROW_FLUSH );
Syntax