Is there a difference between Select * and Select [list each col] [duplicate]

Answer 1

If your code relies on certain columns being in a certain order, you need to list the columns. If not, it doesn't really make a difference if you use "*" or write the column names out in the select statement.

An example is if you insert a column into a table.

Take this table: ColA ColB ColC

You might have a query:

SELECT *
FROM myTable

Then the code might be:

rs = executeSql("SELECT * FROM myTable")
while (rs.read())
    Print "Col A" + rs[0]
    Print "Col B" + rs[1]
    Print "Col C" + rs[2]

If you add a column between ColB and ColC, the query wouldn't return what you're looking for.