SQL Developer将表名和列名更改为大写

Question

I'm learning how to use the current version of Oracle's SQL Developer, however I'm having some issues with the software. Whenever I try to create a new table or edit an existing one, the software automatically changes the table and column names to all uppercase. I would prefer to keep the table and column names in camel case. The worksheet formatting is fine, just not the table editor. Is there a way to change this setting?

Answer 1

You can force Oracle to use mixed-case identifiers by surrounding your table and column names in double quotes.

CREATE TABLE "myTable" (
  "thisIsAColumn" integer,
  "thisIsAnotherColumn" varchar2(50)
);

However, you really ought not do this. If you do, then every reference to your table and your column will be case-sensitive and will need to use the same double-quoted identifier. That is, you'd need to do

SELECT "thisIsAColumn", "thisIsAnotherColumn"
  FROM "myTable"

This sort of thing generally gets annoying quickly particularly when SQL and PL/SQL are generally not case-sensitive languages. Future developers that have to maintain your code will likely find it annoying to constantly have to double-quote identifiers and to have to get the case correct when queries against other tables remain case-insensitive.

Answer 2

I think this link for you.

The following examples are valid schema object names:

last_name
horse
hr.hire_date
"EVEN THIS & THAT!"
a_very_long_and_valid_name