问题
SELECT col1 'COLUMN 1'
FROM TABLENAME
I am getting an error 'from keyword not found where expected'
How can you give column alias in Oracle 10g some examples are appreciated
回答1:
Use double quotes:
SELECT col1 "COLUMN 1" FROM TABLENAME
回答2:
Shepherdess is correct - you can't use single quotes here.
If the alias doesn't have spaces, you could just type the name without any quotes:
SELECT col1 column1 FROM TABLENAME
回答3:
Single quotes is not allowed here .Either you have to use double quotes or not quots between column1.Careful about column1 because it doesn't supported any spaces between column1.
来源：https://stackoverflow.com/questions/6220188/oracle-column-alias-from-keyword-not-found-where-expected