Is there a problem to Show SQL TIME on DBGrid?

Question

I created ADOConnection, ADOQuery, and DataSource and connect to DBGrid.

Almost all columns are working ok, but when I swayed to the column with TIME type, some errors occurs:

could not convert variant of type (olestr) into type (double)

Multiple-step operation generated errors. Check each status value.

I read a lot of problems about this, but I didn't read about the problem with the TIME column. (My column is named TTime, and Date column TDate)

My query:

SELECT * from TVP;

I don't know if I have to group DATE and TIME columns or if someone has a way to show this TIME column.

Maybe a Delphi mistake?

Answer 1

I worked by converting the column to VARCHAR:

SELECT ID, TDATE, CONVERT(VARCHAR, TTIME) TTIME, PRODUCT, DESCRIPTION FROM TVP;