The Oracle PL/SQL CLOB or Character Large Object data type is used to store character-based data in a database. This data type is often used to store text, json or xml documents.
The syntax for creating a CLOB column is as follows:
CREATE TABLE table_name ( column_name CLOB );
An example of using a CLOB data type is as follows:
CREATE TABLE clob_table ( id NUMBER, myclob CLOB ); INSERT INTO mytable (id, myclob) values (1, '
This is some XML');
You can also insert varchar2 values into a clob column. The syntax for this is as follows:
INSERT INTO mytable (id, myclob) values (2, to_clob('This is some text'));
The to_clob function will convert a varchar2 value into a clob. This can be useful if you need to store text, json or xml data in a database.