[sqlite] Select via Wi-fi very slow

2010-05-12 Thread Kevin Youren
Emany, this has possibly already been done, but have you got an index on the table for the column called "description"? I would suggest a timed test on both the Symbol device and the computer before and after the index is added. Also, the Symbol may only have 64Mb of RAM, which probably would sl

Re: [sqlite] Select via Wi-fi very slow

2010-05-11 Thread Tim Romano
N.B. Queries with LIKE will not use an index if the particular implementation of SQLite overrides LIKE. The .NET implementation I'm familiar with has done so; the OP's may have done so too. However, GLOB was left intact and does make use of an index on "starts with" and "equals" substring searches.

Re: [sqlite] Select via Wi-fi very slow

2010-05-11 Thread Pavel Ivanov
> Sometimes search found 200 records.  When I do a query via wi-fi takes 1 > minute. > How can I decrease this time? Time taken to search for the records does not depend on how many records found. It depends on how many records were searched through. Most probably for your query no indexes are use

[sqlite] Select via Wi-fi very slow

2010-05-10 Thread Ernany
Hello, I'll try to explain my problem: I have a Symbol MC3090 Data Collector with VB.Net 2005. I have a database with 80,000 records on the computer. For example: I search all words that begin with "shirt" and show in the Grid Collector. Sometimes search found 200 records. When I do a query via