resultset.h File Reference

A resultset object is used to iterate over some or all of the rows that are returned after executing a query. More...

Functions
TIBDG_API void	tibdgResultSet_Close (tibEx e, tibdgResultSet resultSet)
	Close the resultset object. More...
TIBDG_API tibdgStatement	tibdgResultSet_GetStatement (tibEx e, tibdgResultSet resultSet)
	Get the statement associated with this resultset. More...
TIBDG_API tibbool_t	tibdgResultSet_HasNext (tibEx e, tibdgResultSet resultSet)
	Inform the caller if the resultset has more rows or not. More...
TIBDG_API tibdgRow	tibdgResultSet_Next (tibEx e, tibdgResultSet resultSet)
	Advance the resultset to the next row and returns it. More...

Detailed Description

A resultset object is used to iterate over some or all of the rows that are returned after executing a query.

A program that creates a resultset object must explicitly call tibdgResultSet_Close to reclaim its resources.

Function Documentation

TIBDG_API void tibdgResultSet_Close	(	tibEx	e,
		tibdgResultSet	resultSet
	)

Close the resultset object.

Note that this must be called in order to execute another query on the original statement object that was used to create this resultset.

Parameters

e	The exception object captures information about failures.
resultSet	The resultset to be closed.

Returns

void

TIBDG_API tibdgStatement tibdgResultSet_GetStatement	(	tibEx	e,
		tibdgResultSet	resultSet
	)

Get the statement associated with this resultset.

Parameters

e	The exception object captures information about failures.
resultSet	The resultset.

Returns

the statement

TIBDG_API tibbool_t tibdgResultSet_HasNext	(	tibEx	e,
		tibdgResultSet	resultSet
	)

Inform the caller if the resultset has more rows or not.

May block the first time it is called to populate results

Parameters

e	The exception object captures information about failures.
resultSet	The resulSet from which to check if there are more rows.

Returns

tibbool_t

TIBDG_API tibdgRow tibdgResultSet_Next	(	tibEx	e,
		tibdgResultSet	resultSet
	)

Advance the resultset to the next row and returns it.

This call advances the resultset beyond the current row. If the next row exists, this call returns it. If the current row is the last or if an exception has been thrown, this call returns NULL. Note that the row returned can be used in tibdgRow methods but may not be used in table operations.

Parameters

e	The exception object captures information about failures.
resultSet	The resultset to be advanced.

Returns

On success, this call returns the row.
On failure, this call returns NULL.