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Posted by / 14-Jun-2020 14:24

Updating a clob field

Stands for "Character Large Object." A CLOB is a data type used by various database management systems, including Oracle and DB2.It stores large amounts of character data, up to 4 GB in size.The CLOB data type is similar to a BLOB, but includes character encoding, which defines a character set and the way each character is represented.BLOB data, on the other hand, consists of unformatted binary data.However, some database programs cannot run certain text operations on CLOB fields, such SQL commands with the "LIKE" condition.

Since CLOB data may be very large, some database management systems do not store the text directly in the table.You can also perform more complicated updates in Oracle.You may wish to update records in one table based on values in another table.SQL exec read_file; BEGIN read_file; END; * ERROR at line 1: ORA-06502: PL/SQL: numeric or value error: invalid LOB locator specified: ORA-22275 ORA-06512: at "SYS. READ_FILE", line 22 ORA-06512: at line 1 Can any one of you please help me out.Regards, R 22275, 00000, "invalid LOB locator specified" // *Cause: There are several causes: (1) the LOB locator was never // initialized; (2) the locator is for a BFILE and the routine // expects a BLOB/CLOB/NCLOB locator; (3) the locator is for a // BLOB/CLOB/NCLOB and the routine expects a BFILE locator; // (4) trying to update the LOB in a trigger body -- LOBs in // trigger bodies are read only; (5) the locator is for a // BFILE/BLOB and the routine expects a CLOB/NCLOB locator; // (6) the locator is for a CLOB/NCLOB and the routine expects // a BFILE/BLOB locator; // *Action: For (1), initialize the LOB locator by selecting into the locator // variable or by setting the LOB locator to empty.

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For (2),(3), // (5) and (6)pass the correct type of locator into the routine.