myquery1.SQL.Text := 'select * from table WHERE col="XXX" ';
myquery1.Open;
showmessage(myquery1.Fields[0].AsString);
//ok
//quotation marks
uniquery1.SQL.Text := 'select * from table WHERE col="XXX" ';
uniquery1.Open;
showmessage(uniquery1.Fields[0].AsString);
// not ok
//two apostrophes
uniquery1.SQL.Text := 'select * from table WHERE col=''XX''';
uniquery1.Open;
showmessage(uniquery1.Fields[0].AsString);
//ok
Why quotation marks "" dont working correctly ?