Oracle TO u CLOB函数

Posted 2021-02-22

A few examples of the TO_CLOB function.

--TO_CLOB
 
--Example 1
SELECT first_name, TO_CLOB(first_name) AS clob_value
FROM student
WHERE student_id = 1;
 
--Example 2
CREATE TABLE datatype_test (
nclob_column NCLOB
);
 
INSERT INTO datatype_test (nclob_column)
VALUES ('This is ä tëst');
 
SELECT nclob_column, TO_CLOB(nclob_column) AS clobvalue
FROM datatype_test;