i need some help with a SQL alter command. i am trying to add a field to my table, but when i do the field is filled with null in any existing rows. how can i just make it fill blank like the ...

Note that the "ALTER INDEX" statement rebuilds one index at a time; if a table has multiple indexes, you need an "ALTER INDEX" for each one. Press "Enter" to execute the command.

Type an "ALTER TABLE" command to add a CLOB item to an existing table, using the following SQL code as a guide:ALTER TABLE your_table ( add big_text_field CLOB );Press "Enter" to execute the command.