[sqlite] cursor question about sqlite3

2012-12-25 Thread genliu777
according to the forward-only iteration through sqlite table records, i wish
i could realize some kind of funtions like next(), prev(), move(),
getbookmark() and setbookmark(), to bi-directionally iterate through table. 

i searched through this forum of cursor question about sqlite. someone
tell it can be get through the funtion sqlite3_get_table(), but memery
overhead arises and has impack on speed!

i read the orignal code source of the last version of sqlite, and find some
funtion and struct about virtual table deal with cursor behaving as i
mentioned above. but i don`t know what kind of relation between virtual
table and the table storing the actual data i put into. 

further, i find some kind of funtion of btree api in sqlite, just like
sqlite3BtreeCursor, sqlite3BtreeFirst, sqlite3BtreeLast, sqlite3BtreeNext,
qlite3BtreePrevious, sqlite3BtreeMoveto, which is akind of what i want. but
i do not know how far it is away from the behavior dealing with field data
under the table framework! 





--
View this message in context: 
http://sqlite.1065341.n5.nabble.com/cursor-question-about-sqlite3-tp66263.html
Sent from the SQLite mailing list archive at Nabble.com.
___
sqlite-users mailing list
sqlite-users@sqlite.org
http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users


Re: [sqlite] cursor question about sqlite3

2012-12-25 Thread Igor Tandetnik
genliu777 doityth...@163.com wrote:
 according to the forward-only iteration through sqlite table records, i wish
 i could realize some kind of funtions like next(), prev(), move(),
 getbookmark() and setbookmark(), to bi-directionally iterate through table.

http://www.sqlite.org/cvstrac/wiki?p=ScrollingCursor

-- 
Igor Tandetnik

___
sqlite-users mailing list
sqlite-users@sqlite.org
http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users


Re: [sqlite] cursor question

2006-12-12 Thread John Stanton
Cursors as such are not implemented.  You can achieve the function of a 
cursor from Sqlite with some thought.


Jim Crafton wrote:

Does the latest version of sqlite have cursors? If so, where might I
find docs on using them?

Thanks

Jim C

- 


To unsubscribe, send email to [EMAIL PROTECTED]
- 






-
To unsubscribe, send email to [EMAIL PROTECTED]
-



[sqlite] cursor question

2006-12-11 Thread Jim Crafton

Does the latest version of sqlite have cursors? If so, where might I
find docs on using them?

Thanks

Jim C

-
To unsubscribe, send email to [EMAIL PROTECTED]
-



Re: [sqlite] cursor question

2006-12-11 Thread Trevor Talbot

On 12/11/06, Jim Crafton [EMAIL PROTECTED] wrote:


Does the latest version of sqlite have cursors? If so, where might I
find docs on using them?


No; however, the API returns query results iteratively, as if it were
an implicit forward-only cursor.

-
To unsubscribe, send email to [EMAIL PROTECTED]
-