Cannot alter table (add unique constraint) in a SQL PL store procedure for db2

I am trying to create a store procedure in SQL PL for db2. A new field needs to be added as part of the unique key, so I need to drop the previous uk first, and then add the new unique key. That worke

How do you insert a line break into a DB2 SQL PL VARCHAR variable?

It seems like this should be tremendously easy, but I\'ve had no luck thus far开发者_JAVA技巧.

曹冲称象歌词？