Thanks R. Smith. I'm sparing the details primarily because my environment is unlike many others (I'm using C# to access SQLite).
But, I will put more effort into my questions and I'll reply back with db and table definitions, along side a simple reproducible program. On Sat, Jul 18, 2015 at 7:33 AM, R.Smith <rsmith at rsweb.co.za> wrote: > Hayden, I've been following your questions (to try and help) but I have to > comment - the questions are all exceedingly vague, it's really hard to help > with one hand tied behind our collective backs. > > This is not a complaint - I'm very sure you try to keep it short out of > kindness and consideration (not wanting to be a bother etc.), but you trim > the questions beyond comprehension. > > If the question regards performance, for instance, please post a schema or > some SQL that shows the problem. I know in your mind it "makes sense" when > you describe the situation, but it is extremely hard for us (who have no > insight into the dev environment) to follow exactly what is meant, plus the > fact that what you imagine might cause the problem may or may not be the > actual thing, so if not mentioning the other things that might be involved, > we have to guess, and as you have (no doubt) noticed from many of the > replies - we often guess very wrong. > > > > On 2015-07-18 07:37 AM, Hayden Livingston wrote: >> >> I was getting garble in my SQLite database, so I switched >> PRAGMA=UTF-16 on for my INSERT statements. These are getting prepared. >> >> I noticed my total time dramatically increased. >> >> I then switched to UTF-8 thinking it's the increased writes causing >> it, no noticeable difference, i.e. it's just as slow as PRAGMA=UTF-16. >> >> Removing PRAGMA from my INSERT statements brings back the performance. >> >> Any ideas? > > > A case in point, this latest question - there are so many things that > influence speed to do with encodings, such as custom collations, is this > table FTS or not?, What garble did you get?, Encoding cannot ever be changed > for any SQLite DB, so when you say you "switch" it, what do you mean? The > DB only ever stores bytes, so any retardation is likely during conversion. A > simple bit of SQL script / schemata will answer all these and remove any > guesswork. > > > > > _______________________________________________ > sqlite-users mailing list > sqlite-users at mailinglists.sqlite.org > http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
