Solved

SQL 7 datetime stored procedure parameter

Posted on 2000-04-26
4
687 Views
Last Modified: 2010-04-04

I'm having a problem passing a datetime parameter to an SQL 7 stored procedure.  I get an ODBC error - "Error converting datatype varchar to datetime".  The string is "01/01/2000 00:23:28.578"

I tried passing it as a string '2000.01.01 00:23:28.578' and using CAST ... AS DATETIME without luck too.  Tested the CAST and INSERT in Query Analyzer and they looked fine.

Delphi help, manual and D5 Developer's guide were no help.

-- Delphi 5 Code --

StoredProc1.Params[0].AsDateTime :=
      StrToDateTime(spDate+' '+sTime);
StoredProc1.Params[1].AsString :=
      sServer;
StoredProc1.Prepare;
StoredProc1.ExecProc;

-- SQL 7 Stored Procedure --

CREATE PROCEDURE [usp_InsertStat]
      @itime datetime,
      @server varchar(15)
AS
INSERT INTO stats (itime, server) VALUES (
      @itime,
      @server)

Can anyone help me out?

Thanks,

Scott
0
Comment
Question by:sfb
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 2

Accepted Solution

by:
NetoMan earned 200 total points
ID: 2752849
Well, sounds like a problem with ODBC... but :

check StoredProc1.Params with the object inspector and set datetime to the param-type of param 0. (just in case is not).

Are you tried to pass only the date without time ?

(StoredProc1.Params[0].AsDate :=  StrToDate(spDate);

if works in this way, it will help to see where is the problem.

However, Why just don´t pass the param as string and then in the stored procedure you do the job of the conversion to datetime. As I see, you anyway do this conversion with the DateToStr function in Delphi.


NetoMan :)
0
 
LVL 6

Expert Comment

by:DrDelphi
ID: 2752901
I ran into the same problem a while back and ended up running the entire thing through DTS , making the conversion in VBScript during the transformation.  


Good luck!!
0
 

Author Comment

by:sfb
ID: 2753655

NetoMan -
I was planning to try your suggestion on my home computer (Win2000), unfortunately SQL Server is saying it is corrupted and I will need to reinstall.
I brought my work computer (notebook) home tonight, so I'll try soon.

DrDelphi -
I'm using a memorystream to rip through a large number of multi-megabyte, variable length records.  A fair bit of logic and manipulation needs to take place.  DTS may be able to handle it, but I don't think as quickly. ?

I have the program using dynamic SQL Insert statements, but I want to try stored procedures to compare speed.  Besides, I should know how.<g>

Scott
0
 

Author Comment

by:sfb
ID: 2753753

You forced me to take a closer look at how Params was indexed.  Looking at the Params in Object inspector I found that [0] in SQL 7 is a 'RETURN_VALUE'.

I switched to .ParamByName('@itime').AsDateTime and everything works well now.

Thanks,

Scott
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question