Difference between revisions of "OpenDBX/C API/odbx field value"
From Linuxnetworks
(→Parameters:) |
(→Return values:) |
||
| Line 16: | Line 16: | ||
= Return values: = | = Return values: = | ||
| − | * Address of a string or binary object for the specified field | + | * Address of a string or binary object for the specified field |
| + | * NULL if the field is a NULL value, "result" is invalid or "pos" is out of range. | ||
= Errors: = | = Errors: = | ||
Revision as of 16:24, 5 June 2006
const char* odbx_field_value(
odbx_result_t* result,
unsigned long pos )
Description:
Returns the field value specified by "pos" of the current row. The value of "pos" must be in the range from 0 to odbx_column_count()-1. All values except binary objects are strings terminated by \0 but NULL is also a valid field value. Numbers have to be converted to their binary representation before arithmetic operations are allowed.
Parameters:
- result: Pointer to object created by odbx_result()
- pos: Column number in the current result set
Return values:
- Address of a string or binary object for the specified field
- NULL if the field is a NULL value, "result" is invalid or "pos" is out of range.
Errors:
- None
Back to Overview
