sqlite: alias column name can't contains a dot “.”

Question

(sorry for my poor english)

If you try this select operation over a sqlite database:

SELECT column AS \'alias 1\' FROM table;

Answer 1

If you're using the SQLite 3 then the following query works just fine with various types used for the Alias column names.

See the result below the query:

select '1' as 'my.Col1', '2' as "my.Col2", '3' as [my.Col3], '4' as [my Col4] , '5' as 'my Col5' 

Answer 2

I've found a "fix"...

SELECT column AS '.alias.1' FROM table;

alias.1
--------
result 1
result 2

just another dot in the begining...

of course I don't like this solution... any other idea??

Answer 3

Use backticks

SELECT column AS `alias.1` FROM table;

Or double quotes (ANSI standard) per the other answer

SELECT column AS "alias.1" FROM table;

Both verified in SQLite Manager for FireFox

Answer 4

Enclose your alias in double quotes.

SELECT 'test' AS "testing.this"

Output:

| testing.this |
  test

Updated: Double quotes are used to enclose identifiers in SQL, not single quotes. Single quotes are only for strings. In this case you are trying to ensure that "testing.this" is used as is and not confused as testing.this (testing table this column).

http://www.sqlite.org/faq.html#q24

Answer 5

Definitely working properly:

C:\Windows>sqlite3.exe
SQLite version 3.7.8 2011-09-19 14:49:19
Enter ".help" for instructions
Enter SQL statements terminated with a ";"
sqlite> .mode column
sqlite> .headers on
sqlite> SELECT 'hello' AS 'alias.1';
alias.1
----------
hello
sqlite>