Selecting with datetime

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Fresh Boarder
Fresh Boarder
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Joined: 28.06.2014, 21:47

Selecting with datetime

Postby dpap » 28.06.2014, 22:03

I wrote this code

with form20.aZQuery do begin
SQL.text := 'SELECT COUNT(aDateTimeFieldName) FROM aTable WHERE aDateTimeFieldName='+quotedStr(aDateTimeValueThatDoesntExistInAnyRecord);
result := not isEmpty;

I expect to return an empty table (recordcount =0, isEmpty = TRUE) but allways It returns isEmpty = FALSE (recordcount =1) even the datetime doesn' exist

Why ?
I'm somewhere wrong ?

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