A. Klitzing wrote:
Hello,
I need some information about the sqlite3_step() function.
How much CPU-usage does it need in comparison with sqlite3_get_tables()?
I have to implement functions like next(), prev(), last(), first(),
relative(int) and absolute(int).
#1 Way - sqlite3_step()
I can only step forward with sqlite3_step() and use sqlite3_reset() to get
first() and iterate through the result to the position for relative() and so on.
#2 Way - sqlite3_get_tables()
I can use get_tables() instead and so I can set my cursor without problems to
every relative position but I loose nice features that I have with sqlite3_stmt.
So the question is - needs sqlite3_step() a few performance so it is "ok" that I will
iterate "dirty" through the result everytime?
Regards,
André Klitzing
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Sqlite3_step is how sqlite3_get_tables functions. If you use step
directly you will get more eficient processing, but if you intend to
move all your selected rows into memory before processing them, then
get_table is appropriate. Just be wary when you use get_table that you
could be consuming a large chunk of memory and choking your application
unless you control it with a LIMIT or similar mechanism.
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