Say there is a composite key on col1,col2,col3,col4 for a table, when I use col2,col3 in an sql query index is not firing and is going for full table scan.(Reason could be col2,col3 may not be driving
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form. For help clari
I need some help with MySQL. I have id col开发者_JAVA百科umn on my news table with AUTO_INCREMENT and as usually it assign id=1 for the very first news, id=2 for the second and etc. But I want it to s
I need to use Sqlite, but there\'s a problem with my syntax (well that\'s what the Exception is telling me...), Here\'s my code:
I have folllowing things on my PC Windows 7 (64bit OS) Microsoft Office 2003 Microsoft Visual c# Express 2008
I have a PHP script that fetches a relatively large amount of data, and formats it as HTML unordered lists for use in an Ajax application.
There is a growing tendency for shifting from mysql to NOSQL, SQLite, etc. I have read many blogs and articles comparing the speed of mysql with other types of DBMS. How开发者_Go百科ever, I believe th
I am getting a \"partial record at end of file\" error when using FIXED parameter with External Tables.
I followed some instructions over the net how to export your database. When I finished the adminitration I got this txt file:
What is the difference between a dataset and a database ? If they are different then how ? Why is huge data difficult to be manageusing data开发者_如何学Pythonbases today?!
加载中,请稍侯......