One part of my purpose is to convert SQL queries to Oracle SQL. I executed the query in MS access, here is the relationship table, SQL query and query result:


ACCESS QUERY SQL
SELECT PUBLISHER.PUBLISHER_CODE, PUBLISHER.PUBLISHER_NAME, BOOK.TITLE, BOOK.TYPE, INVENTORY.BRANCH_NUM, BRANCH.BRANCH_NAME
FROM PUBLISHER INNER JOIN (BRANCH INNER JOIN (BOOK INNER JOIN INVENTORY ON BOOK.BOOK_CODE = INVENTORY.BOOK_CODE) ON BRANCH.BRANCH_NUM = INVENTORY.BRANCH_NUM) ON PUBLISHER.PUBLISHER_CODE = BOOK.PUBLISHER_CODE
WHERE (((BOOK.TYPE)='FIC') AND ((BRANCH.BRANCH_NAME)='Henry on the Hill'))
ORDER BY PUBLISHER.PUBLISHER_NAME;
Thinking that MS SQL might work in oracle, I tried:
SQL> SELECT PUBLISHER.PUBLISHER_CODE, PUBLISHER.PUBLISHER_NAME, BOOK.TITLE, BOOK.TYPE, INVENTORY.BRANCH_NUM, BRANCH.BRANCH_NAME
2 FROM PUBLISHER INNER JOIN (BRANCH INNER JOIN (BOOK INNER JOIN INVENTORY ON BOOK.BOOK_CODE = INVENTORY.BOOK_CODE) ON BRANCH.BRANCH_NUM = INVENTORY.BRANCH_NUM) ON PUBLISHER.PUBLISHER_CODE = BOOK.PUBLISHER_CODE
3 WHERE (((BOOK.TYPE)='FIC') AND ((BRANCH.BRANCH_NAME)='Henry on the Hill'))
4 ORDER BY PUBLISHER.PUBLISHER_NAME;
no rows selected
Obviously, this did not work. So, I somehow did the cropping / pasting / editing thing in my 11g oracle. Here is what I got:
SQL> SELECT PUBLISHER.PUBLISHER_CODE, PUBLISHER.PUBLISHER_NAME, BOOK.TITLE, BOOK.TYPE,
2 INVENTORY.BRANCH_NUM, BRANCH.BRANCH_NAME
3 FROM PUBLISHER
4 inner join BOOK ON PUBLISHER.PUBLISHER_CODE = BOOK.PUBLISHER_CODE
5 inner join INVENTORY on INVENTORY.BRANCH_NUM = BRANCH.BRANCH_NUM
6 inner join BRANCH on INVENTORY.BRANCH_NUM = BRANCH.BRANCH_NUM
7 where BOOK.BOOK_TYPE = 'FIC'
8 and BRANCH.BRANCH_NAME = 'Henry on the Hill';
inner join INVENTORY on INVENTORY.BRANCH_NUM = BRANCH.BRANCH_NUM
*
ERROR at line 5:
ORA-00904: "BRANCH"."BRANCH_NUM": invalid identifier
so why am I getting this: ERROR on line 5: ORA-00904: "BRANCH". "BRANCH_NUM": invalid identifier
Does the order of joining justify? As I understand it, I did it sequentially from table to table.
is the meaning of the syntax really? EX:
INVENTORY.BRANCH_NUM = BRANCH.BRANCH_NUM
BRANCH.BRANCH_NUM = INVENTORY.BRANCH_NUM
?
- Oracle SQL, ?
, ?
, -, , , , . !