I often hear people say, “I would hate to have to alter my table” or “I would have to re-do a table.” Well, this is a great example of how to do it. You can add a column to a table that has only two values, and these two values will be defaulted to the first one.
You can also use the alter table command to bring a column in a table that you don’t have a default value for, but it’s a good idea to make sure the column is there in the first place.
While you can add columns and the alter table command itself can be used to add columns, you can also use the alter table command to delete columns. Just as you can add a column and then delete the column, you can also use the alter table command to delete columns.
As a general rule, the default value for some columns can be a bit of a letdown, and it can be useful to make sure that table doesn’t get any more complicated than it is now. If you want to specify a default value for certain columns, you can use the alter table command to have the column be dropped in the table.
In this case, if we wanted to force the table to use the default 1,000-year-old date, we could run the alter table command. Unfortunately, without knowing what the default values are for the columns we want to drop, we can’t be sure we’re doing things correctly.
The alter table command will also drop all the columns that you specify. In this case, we want to drop the column that is the default for the “Birthdate” column. The column is specified as having the default value of the current year.
We can do the same thing with the column that is the default column for the Birthdate column. We can use the drop column command to drop the column. The column specified as having the default value is the one we want to drop.
We can also drop columns that we don’t need. I really hate when you have to do this, because it just makes your code harder to read.
We can drop columns as long as they are not needed to make the code easier to read. In this case, it’s a good idea to drop the Birthdate column and the Birthdate column.
The Birthdate column is the most important one in this table, because it is used by some of the columns to set the birthdate for the person. This column has a default value of NULL, so we need to drop it.