Read file : File Read with UTL_FILE « System Packages « Oracle PL/SQL Tutorial

Oracle PL/SQL Tutorial
1. Introduction
2. Query Select
3. Set
4. Insert Update Delete
5. Sequences
6. Table
7. Table Joins
8. View
9. Index
10. SQL Data Types
11. Character String Functions
12. Aggregate Functions
13. Date Timestamp Functions
14. Numerical Math Functions
15. Conversion Functions
16. Analytical Functions
17. Miscellaneous Functions
18. Regular Expressions Functions
19. Statistical Functions
20. Linear Regression Functions
21. PL SQL Data Types
22. PL SQL Statements
23. PL SQL Operators
24. PL SQL Programming
25. Cursor
26. Collections
27. Function Procedure Packages
28. Trigger
29. SQL PLUS Session Environment
30. System Tables Data Dictionary
31. System Packages
32. Object Oriented
33. XML
34. Large Objects
35. Transaction
36. User Privilege
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Oracle PL/SQL Tutorial » System Packages » File Read with UTL_FILE 
31. 33. 3. Read file
SQL>
SQL> CREATE OR REPLACE PROCEDURE readit
  2  IS
  3    v_filehandle_input UTL_FILE.FILE_TYPE;
  4    v_newline     VARCHAR2(32767);
  5  BEGIN
  6    v_filehandle_input := UTL_FILE.FOPEN('c:\temp','functions.sql', 'r'32767 );
  7   loop
  8    BEGIN
  9      UTL_FILE.GET_LINE(v_filehandle_input,v_newline);
 10      DBMS_OUTPUT.PUT_LINE(v_newline);
 11    EXCEPTION
 12      WHEN NO_DATA_FOUND THEN EXIT ;
 13    END;
 14   end loop;
 15    UTL_FILE.FCLOSE (v_filehandle_input;
 16  end;
 17  /

Warning: Procedure created with compilation errors.

SQL> show errors
Errors for PROCEDURE READIT:

LINE/COL ERROR
-------- -----------------------------------------------------------------
3/22     PL/SQL: Item ignored
3/22     PLS-00201: identifier 'UTL_FILE' must be declared
6/3      PL/SQL: Statement ignored
6/3      PLS-00320: the declaration of the type of this expression is
         incomplete or malformed

9/5      PL/SQL: Statement ignored
9/23     PLS-00320: the declaration of the type of this expression is
         incomplete or malformed

15/3     PL/SQL: Statement ignored

LINE/COL ERROR
-------- -----------------------------------------------------------------
15/20    PLS-00320: the declaration of the type of this expression is
         incomplete or malformed

SQL>
SQL>
SQL>
SQL>
31. 33. File Read with UTL_FILE
31. 33. 1. Show file content
31. 33. 2. Get a line from a file with UTL_FILE package
31. 33. 3. Read file
31. 33. 4. Read from the CLOB in chunks of 1000 characters and write to the output file
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