Main   Products   Offshore Outsourcing   Customers   Partners   ContactUs  
JDBC Databases
  HXTT Access v5.2
 
  Buy Now
  Support
  Download
  Document
  FAQ
  HXTT Cobol v2.1
  HXTT DBF v5.2
  HXTT Excel v4.2
  HXTT Paradox v5.2
  HXTT Text(CSV) v5.2
  HXTT XML v1.2
Offshore Outsourcing
Oracle Data Import/Export
DB2 Data Import/Export
Sybase Data Import/Export
Free Resources
  Firewall Tunneling
  Search Indexing Robot
  Conditional Compilation
  Password Recovery for MS Access
  Password Recovery for Corel Paradox
  Checksum Tool for MD5
  Character Set Converter
  Pyramid - Poker of ZYH
   
   
   
Hongxin Technology & Trade Ltd. of Xiangtan City (abbr, HXTT)

HXTT ACCESS
Huge performance problem
Juan Escobar
2008-03-12 03:28:47.0
I am trying to duplicate a slice of data in a table, using a query like this one:

INSERT INTO SAMPLEDATA (EID, ...other 44 columns...)
SELECT 'eid_1' AS EID,...other 44 columns...
FROM SAMPLEDATA WHERE EID='eid_0'

Total number of rows in SAMPLEDATA= 193361
Total Number of columns= 45
Total number of selected/inserted rows= 27623

Taking times seems like there is a huge performance issue in the HXTT driver:
HXTT: 2h30min!!!
Sun's JDBC driver: 3,5sec
MS Access GUI: ~5sec
c++ driver: 5sec
Re:Huge performance problem
HXTT Support
2008-03-30 16:31:33.0
That slow insert speed was resulted by recno verification for self insert. Changed. The latest package will be released after about 24 hours.

Search Key   Search by Last 50 Questions




Google
 

Address: 9 Station Rd., Xiangtan City, Hunan Province, P.R. China
Postcode: 411100
Phone: (86)731-58225727
Fax: (86)731-58225727
Email: webmaster@hxtt.com
Copyright © 1999-2011 Hongxin Technology & Trade Ltd. | All Rights Reserved. | Privacy | Legal | Sitemap