Append data to clob : Clob « Data Type « Oracle PL / SQL

Append data to clob

 

SQL> CREATE TABLE myTable (
  2    id          INTEGER PRIMARY KEY,
  3    clobData CLOB NOT NULL
  4  );

Table created.

SQL>
SQL>
SQL> CREATE OR REPLACE PROCEDURE initClob(clob_par IN OUT CLOB,id_par IN INTEGER) IS
  2  BEGIN
  3    SELECT clobData INTO clob_par FROM myTable WHERE id = id_par;
  4  END initClob;
  5  /

Procedure created.

SQL>
SQL>
SQL> CREATE OR REPLACE PROCEDURE readClob(id_par IN INTEGER) IS
  2    clobVariable CLOB;
  3    charVariable VARCHAR2(50);
  4    offsetPos INTEGER := 1;
  5    amount_var INTEGER := 50;
  6  BEGIN
  7    initClob(clobVariable, id_par);
  8    DBMS_LOB.READ(clobVariable, amount_var, offsetPos, charVariable);
  9    DBMS_OUTPUT.PUT_LINE('charVariable = ' || charVariable);
 10    DBMS_OUTPUT.PUT_LINE('amount_var = ' || amount_var);
 11  END readClob;
 12  /

Procedure created.

SQL>
SQL>
SQL>
SQL> CREATE OR REPLACE PROCEDURE append_example IS
  2    clobSrc CLOB;
  3    clobDest CLOB;
  4  BEGIN
  5    SELECT clobData INTO clobSrc FROM myTable WHERE id = 2;
  6    SELECT clobData INTO clobDest FROM myTable WHERE id = 1 FOR UPDATE;
  7
  8    readClob(1);
  9    DBMS_LOB.APPEND(clobDest, clobSrc);
 10    readClob(1);
 11
 12  END append_example;
 13  /

Procedure created.

SQL>
SQL>
SQL> drop table myTable;

Table dropped.

1.	clob data type
2.	Use clob type in PL/SQL
3.	Use dbms_lob.erase to remove value from clob type value
4.	Use dbms_lob.fileopen to open bfile
5.	Creating an Internal LOB Table
6.	Copying Internal LOBs
7.	Appending and Writing to LOBs
8.	DBMS_LOB package.
9.	Print out the length of the CLOBs previously INSERTed
10.	Compare clob data
11.	Compare two clobs
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

Append data to clob : Clob « Data Type « Oracle PL / SQL

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