mysql_stmt_fetch_column

mysql_stmt_fetch_column fetches part of a single column value from the current prepared statement row, allowing large data to be read incrementally via an offset.

Syntax

int mysql_stmt_fetch_column(MYSQL_STMT * stmt,
                            MYSQL_BIND * bind_arg,
                            unsigned int column,
                            unsigned long offset);

Parameters

• stmt - a statement handle, which was previously allocated by mysql_stmt_init().

• bind_arg - a pointer to a MYSQL_BIND structure.

• column - number of columns, first column is numbered zero.

• offset - offset at which to begin retrieving data.

Description

This function can be used to fetch large data of a single column in pieces.

Return Value

Returns zero on success, non-zero on failure.

The size of the buffer is specified within MYSQL_BIND structure.

See Also

• mysql_stmt_fetch()

• mysql_stmt_send_long_data()