Difficulty solving IErrorInfo.GetDescription failed

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I have a SQL query used to page through a database but throws this message once the OleDbDataAdapter executes it's fill command. The exact error message:

"IErrorInfo.GetDescription failed with E_FAIL(0x80004005)."

I have tested my SQL query in Access with success, seeing as Access can handle this query I'm completely stumped as to what is the problem. My working, yet not as elegant as I may want, SQL query where PageSize and intSkip are integers indicating the number of records on a page as well as the sum total of records on previous pages respectably:

SQL

SELECT TOP " + this.PageSize + " * FROM(SELECT SiteName, DateTimeMeas FROM (SELECT TOP " + this.PageSize + " * FROM (SELECT TOP " + intSkip + " * FROM ( SELECT DISTINCT SiteName, DateTimeMeas FROM TimeDep )) AS internal ORDER BY SiteName DESC) AS external ORDER BY SiteName ASC)

Any help will be appreciated.

Posted 2-Jul-12 1:14am

Midichlorianite

Updated 2-Jul-12 2:21am

v3

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bhagirathimfs 2-Jul-12 7:47am

What is pageSize here?

Midichlorianite 2-Jul-12 7:58am

The number of records that fit on one page. Sorry for not clarifying. intSkip is the amount of records it can skip due to having been on previous pages.

bhagirathimfs 2-Jul-12 8:06am

that is an integer??

Midichlorianite 2-Jul-12 8:07am

Indeed. I should have added "int" to the name now that I look at it.

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ZurdoDev · Accepted Answer · 2012-07-02T02:20:00

There are several problems.

1. You need to alias your innermost derived table.
2. external is a reserved word in SQL so put [] around it.
3. You need a TOP in your 2nd SELECT before SiteName, DateTimeMeas
4. You need to alias the outermost table.

Try this

SQL

SELECT TOP 10 * 
FROM(
	SELECT TOP 10 SiteName, DateTimeMeas 
	FROM (
		SELECT TOP 10 * 
		FROM (
			SELECT TOP 10 * 
			FROM ( 
				SELECT DISTINCT SiteName, DateTimeMeas 
				FROM TimeDep 
			) y
		) AS internal 
		ORDER BY SiteName DESC
	) AS [external]
ORDER BY SiteName ASC) x