Use dbms_lob.erase to remove value from clob type value

  
SQL>
SQL>
SQL>      declare
  2        l_c clob := 'Hello World!';
  3        l_a number := 9;
  4      begin
  5        dbms_lob.erase( l_c, l_a, 6 );
  6        dbms_output.put_line( 'The clob now = *' || l_c || '*' );
  7        dbms_output.put_line( 'The amount that was erased was: ' || l_a );
  8      end;
  9      /
The clob now = *Hello       *
The amount that was erased was: 7

PL/SQL procedure successfully completed.

SQL> --

1.	clob data type
2.	Use clob type in PL/SQL
3.	Use dbms_lob.fileopen to open bfile
4.	Creating an Internal LOB Table
5.	Copying Internal LOBs
6.	Appending and Writing to LOBs
7.	DBMS_LOB package.
8.	Print out the length of the CLOBs previously INSERTed
9.	Compare clob data
10.	Compare two clobs
11.	Append data to clob
12.	Assign string value to clob type variable
13.	Clob type column
14.	Copy clob data
15.	In() function with clob data
16.	Initialize clob
17.	Read clob type data, DBMS_LOB.READ
18.	Use between ... and with clob data
19.	Use clob to store xml data
20.	clob type data as string
21.	erase clob data
22.	use like operator with clob type data

Use dbms_lob.erase to remove value from clob type value : Clob « Data Type « Oracle PL / SQL

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