On 16 Jul 2009, at 6:22pm, MADHAVAN VINOD wrote:
> Suppose, if I don't have index, is this the desired behavior of Sqlite
> to take this much time to fetch just 10 records or am I missing
> something here.
Your first post states quite clearly '5) No INDEX created.'. Without
any index on your
> Suppose, if I don't have index, is this the desired behavior of Sqlite
> to take this much time to fetch just 10 records or am I missing
> something here.
You're missing that SQLite have to fetch all records satisfying your
condition into memory storage, sort all these records in memory and
Hello Michal,
Thanks for the reply. Please see my comments inline.
>>if you always have condition a=1 (or something similar which uses =
for
>>comparison) you should have index which starts with this field.
The possible values for this field are 1/2. And mostly all the records
have the value
MADHAVAN VINOD wrote:
>
> 5) No INDEX created.
>
> The retrieval logic is such that to retrieve the oldest 10 records along
> with some additional constraints (say a, b and c are columns and the
> constraints are like a=1 AND b < c).
>
>
>
> So my WHERE clause is like "CurrTime <=
Hi All,
Description of my setup:
My database contains
1) One table
2) 20 fields (contains date field to store the inserted time)
3) 100,000 records
4) database size is 21MB.
5) No INDEX created.
6) Sqlite version 3.5.9.
The retrieval logic is such that to retrieve
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