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Type: Posts; User: swjtu_fb

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    another problem:It is necessary to use...

    another problem:It is necessary to use Multi-threaded way to write into stsdb? I think in this condition it become from sequential write to random write,the speed will be slowly.
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    what is max record count in one table?

    what is max record count in one table? or max dbfile size it can be?
    I insert 4kb tile image into stsdb in one table ,the record count is 100 million,while the db file size large than 20GB,or the...
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    Two questions about stsdb

    1. I want to confirm that if the LRU(Least Recently Used )method is used in stsdb,the engine's property "cachesize" is control it?

    2.when I use table.where() method ,the db is very slow when it...
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    Store different size data in one table ?

    According to the project needs,I want to store binary data in one table,the record size is 4KB,256KB,2MB,4MB,16MB,even is 256MB,The number of each record kinds is random.

    the Key is long;

    the...
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    How c++ platform use with stsdb

    the performance of stsdb is nice,so I want to use in my project,but my project is writed by c++ language,so I want to know how use stsdb in my project?

    Thanks.
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    I have some questions about STSDB.

    sorry,my english is poor,maybe I can not describe my question clear.

    1. what is the suggested Tree Depth about W-Tree,ensure the read/write performance?

    2. I find max_Operation/min_Operation...
  7. how store small file in stsdb,such as Image tiles

    By the API document,I known that w-tree store key and value all in the RAM,while I want to store image tiles(size is 256kb),if use Xtable ,it need large memory.I find that the Xfile is mentioned in...
  8. thank you !

    thank you !
  9. why cann't I find IIndex in the pdf development guide?

    in the PDF 4.04 I can not find IIndex but only Xtable.


    using (StorageEngine engine =newStorageEngine("stsdb4.sys","stsdb4.dat")){XIndex<int,string> table =...
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    how to query with STSDB?

    I find that the guide PDF don't introduce how to deal with query in detail.

    so,I want to ask if a table had inserted with 100000 row records, the key's struct is :



    public class key
    {
    ...
  11. what is the differences between Xindex and Xtable?

    I always open a table with var table = engine.OpenXTable<key, string>(tableName);
    but I find an another way to open a table:
    IIndex<Key, string> table = engine.OpenXIndex<Key, string>("table");
    ...
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