sqlite alter table add MULTIPLE columns in a single statement

问题

Is it possible to alter table add MULTIPLE columns in a single statement in sqlite? The following would not work.

alter table test add column mycolumn1 text, add column mycolumn2 text;

回答1:

No, you have to add them one at a time. See the syntax diagram at the top of SQLite's ALTER TABLE documentation:

There's no loop in the ADD branch so no repetition is allowed.

回答2:

alter table test add column mycolumn1 text; alter table test add column mycolumn2 text;

use the above redifined query

来源：https://stackoverflow.com/questions/6172815/sqlite-alter-table-add-multiple-columns-in-a-single-statement