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Old August 7th, 2003, 04:16 PM
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Default Date Comparison

I am comparing a created date to a result from a database and am unable to get them to agree. Several drop down boxes provide integer values for month/date/year that insert into the database correctly. Before running the insert, I search the DB for a Date value equal to the value about to be inserted and cannot get the comparison to work correctly.

Code Segments:

var Month = new String (Request.Form("Month"));
var Date = new String (Request.Form("Date"));
var Year = new String (Request.Form("Year"));

var InsertDate = Month + "/" + Date + "/" + Year;

SQL = "INSERT INTO NurseryEvent (EventDate, ServiceID) VALUES ('"
SQL = SQL + InsertDate
SQL = SQL + "', "
SQL = SQL + ServiceDescriptionID
SQL = SQL + ")";

adoConnection.Execute(SQL);

Above code works correctly. When I try to add a Select/check function before the insert command, the comparisons fail:

SQL = "SELECT * FROM NurseryEvent ";
SQL = SQL + " WHERE EventDate = " + InsertDate;

RS = adoConnection.Execute(SQL);

EventDate NEVER seems to equal InsertDate

Help!!??

Rich






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Old August 8th, 2003, 08:29 AM
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which db are you using?

 
Old August 8th, 2003, 08:40 AM
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Access 2000

 
Old August 8th, 2003, 08:46 AM
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Try this then:

SQL = "SELECT * FROM NurseryEvent ";
SQL = SQL + " WHERE EventDate = #" + InsertDate + "#";



 
Old August 8th, 2003, 08:57 AM
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That fixed the problem.

So I don't beat my head against the wall for 2 days the next time, what do the # signs mean/do and why did the WHERE statement not work until they were there?

Thanks loads for the help!!!

 
Old August 8th, 2003, 09:03 AM
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We use # when comparing dates, simply put its similar like the single quote character that we use when we compare strings.

 
Old October 20th, 2004, 08:24 PM
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how would you do the same thing but in SQL2000?

 
Old October 21st, 2004, 09:00 AM
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Default

In SQL 2000, you don't have to use # around the date value, just wrap that within single quotes.
Code:
SELECT......
WHERE ColumnName = '2004-10-20'
Cheers!

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