qdb_cell_length()

Updated: May 06, 2022

Return the length of a cell's data

Synopsis:

#include <qdb/qdb.h>

int qdb_cell_length( qdb_result_t *res, int row, int col ); 

Arguments:

res
A pointer to a result structure to check.
row
The row number of the cell, where the first row is 0.
col
The column number of the cell, where the first column is 0.

Library:

qdb

Description:

This function returns the length of the specified cell of a database query result. This is useful for variable-length datatypes, such as QDB_TEXT and QDB_BLOB. For QDB_TEXT, this function doesn't count the terminating null character.

Returns:

>=0
The length of the specified cell's data, in bytes.
-1
An error occurred (errno is set).

Classification:

QNX Neutrino

Safety:  
Interrupt handler No
Signal handler No
Thread Yes