我按照GoRails教程安装了rbenv。 在与宝石挣扎了一下后，遇到了这个问题：
Bundle complete! 49 Gemfile dependencies, 124 gems now installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.
Diegos-MacBook-Pro:used_products diiru$ which rails
/Users/diiru/.rbenv/shims/rails
Diegos-MacBook-Pro:used_products diiru$
/Users/diiru/.rbenv/shims/rails server
答案 0 :(得分：2)
也许您需要创建目录Approach 1 -> More effective
--Create a table type of VARCHAR
CREATE OR REPLACE type string_table
IS
TABLE OF VARCHAR2(100);
--Function to return tabl type
CREATE OR REPLACE
FUNCTION string_manipulate
RETURN string_table
AS
str_tab string_table;
BEGIN
SELECT 's00'||level bulk collect INTO str_tab FROM dual CONNECT BY level < 10;
RETURN str_tab;
end;
--Use function in the query
SELECT distinct 1
FROM
(SELECT 's001' dn FROM dual
UNION ALL
SELECT 's002' dn FROM dual
UNION ALL
SELECT 's003' dn FROM dual
UNION ALL
SELECT 's004' dn FROM dual
UNION ALL
SELECT 's005' dn FROM dual
UNION ALL
SELECT 's006' dn FROM dual
UNION ALL
SELECT 's007' dn FROM dual
UNION ALL
SELECT 's008' dn FROM dual
UNION ALL
SELECT 's009' dn FROM dual
)a
WHERE a.dn IN
(SELECT * FROM TABLE(string_manipulate)
);
--Approach 2
--Function to get output as mentioned.
CREATE OR REPLACE
FUNCTION string_manipulate
RETURN VARCHAR2
AS
BEGIN
RETURN 'S2009,S2020,S2021';
END;
-- Use function value in a query
SELECT 1
FROM dual
WHERE '''S2009'',''S2020'',''S2021''' = (''''
||REPLACE(string_manipulate,',',''',''')
||'''');